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id="第一章-数据类型-⭐" tabindex="-1">第一章：数据类型（⭐） <a class="header-anchor" href="#第一章-数据类型-⭐" aria-label="Permalink to "第一章：数据类型（⭐）""></a></h1><h2 id="_1-1-概述" tabindex="-1">1.1 概述 <a class="header-anchor" href="#_1-1-概述" aria-label="Permalink to "1.1 概述""></a></h2><ul><li><p>根据<code>变量</code>中<code>存储</code>的<code>值</code>的<code>不同</code>，我们可以将<code>变量</code>分为两类：</p><ul><li><code>普通变量</code>：变量所对应的内存中存储的是<code>普通值</code>。</li><li><code>指针变量</code>：变量所对应的内存中存储的是<code>另一个变量的地址</code>。</li></ul></li><li><p>如下图所示：</p></li></ul><p><img src="'+t+'" alt="" loading="lazy"></p><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><p>普通变量和指针变量的相同点：</p><ul><li>普通变量有内存空间，指针变量也有内存空间。</li><li>普通变量有内存地址，指针变量也有内存地址。</li><li>普通变量所对应的内存空间中有值，指针变量所对应的内存空间中也有值。</li></ul><p>普通变量和指针变量的不同点：</p><ul><li>普通变量所对应的内存空间存储的是普通的值，如：整数、小数、字符等；指针变量所对应的内存空间存储的是另外一个变量的地址。</li><li>普通变量有普通变量的运算方式，而指针变量有指针变量的运算方式（后续讲解）。</li></ul></div><ul><li>那么，在 C 语言中变量的数据类型就可以这么划分，如下所示：</li></ul><p><img src="'+h+`" alt="" loading="lazy"></p><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><ul><li>根据<code>普通变量</code>中<code>存储</code>的<code>值</code>的类型不同，可以将<code>普通变量类型</code>划分为<code>基本数据类型</code>（整型、字符类型、浮点类型、布尔类型）和<code>复合数据类型</code>（数组类型、结构体类型、共用体类型、枚举类型）。</li><li>根据<code>指针变量</code>所<code>指向空间</code>中<code>存储</code>的<code>值</code>的类型不同，可以将<code>指针类型</code>分为<code>基本数据类型指针</code>、<code>复合数据类型指针</code>、<code>函数指针</code>、<code>数组指针</code>等，例如：如果指针所指向的空间保存的是 int 类型，那么该指针就是 int 类型的指针。</li></ul></div><h2 id="_1-2-整数类型" tabindex="-1">1.2 整数类型 <a class="header-anchor" href="#_1-2-整数类型" aria-label="Permalink to "1.2 整数类型""></a></h2><h3 id="_1-2-1-概述" tabindex="-1">1.2.1 概述 <a class="header-anchor" href="#_1-2-1-概述" aria-label="Permalink to "1.2.1 概述""></a></h3><ul><li>整数类型简称整型，用于存储整数值，如：12、20、50 等。</li><li>根据所占<code>内存空间</code>大小的不同，可以将整数类型划分为：</li><li>① 短整型：</li></ul><table tabindex="0"><thead><tr><th>类型</th><th>存储空间（内存空间）</th><th>取值范围</th></tr></thead><tbody><tr><td>unsigned short （无符号短整型）</td><td>2 字节</td><td>0 ~ 65,535 (2^16 - 1)</td></tr><tr><td>[signed] short（有符号短整型，默认）</td><td>2 字节</td><td>-32,768 (- 2^15) ~ 32,767 (2^15 -1)</td></tr></tbody></table><ul><li>② 整型：</li></ul><table tabindex="0"><thead><tr><th>类型</th><th>存储空间（内存空间）</th><th>取值范围</th></tr></thead><tbody><tr><td>unsigned int（无符号整型）</td><td>4 字节（通常）</td><td>0 ~ 4294967295 (0 ~2^32 -1)</td></tr><tr><td>[signed] int（有符号整型，默认）</td><td>4 字节（通常）</td><td>-2147483648（- 2^31） ~ 2147483647 (2^31-1)</td></tr></tbody></table><ul><li>③ 长整型：</li></ul><table tabindex="0"><thead><tr><th>类型</th><th>存储空间（内存空间）</th><th>取值范围</th></tr></thead><tbody><tr><td>unsigned long（无符号长整型）</td><td>4 字节（通常）</td><td>0 ~2^32 -1</td></tr><tr><td>[signed] long（有符号长整型，默认）</td><td>4 字节（通常）</td><td>- 2^31 ~ 2^31-1</td></tr></tbody></table><ul><li>④ 长长整型：</li></ul><table tabindex="0"><thead><tr><th>类型</th><th>存储空间（内存空间）</th><th>取值范围</th></tr></thead><tbody><tr><td>unsigned long long（无符号长整型）</td><td>8 字节（通常）</td><td>0 ~2^64 -1</td></tr><tr><td>[signed] long long（有符号长整型，默认）</td><td>8 字节（通常）</td><td>- 2^63 ~ 2^63-1</td></tr></tbody></table><div class="important custom-block github-alert"><p class="custom-block-title">IMPORTANT</p><p></p><ul><li><p>① 数据类型在内存中占用的存储单元（字节数），就称为该数据类型的长度（步长），如：short 占用 2 个字节的内存，就称 short 的长度（步长）是 2。</p></li><li><p>② C 语言并没有严格规定各种整数数据类型在内存中所占存储单元的长度，只做了宽泛的限制：</p><ul><li>short 至少占用 2 个字节的存储单元。</li><li>int 建议为一个机器字长（指计算机的处理器在一次操作中能够处理的二进制数据的位数，机器字长是处理器的“字”长度，它决定了处理器在一个时钟周期内能够处理的数据量，如：早期的计算机的处理器通常是 8 位的机器字长，意味着处理器一次只能处理 8 位（二进制）数据；之后的计算机的处理器有 16 位的机器字长，意味着处理器一次可以处理 16 位的数据；再之后计算机的处理器有 32 位或 64 位的机器字长，意味着处理器一次可以处理 32 位或 64位的数据）。即：32 位环境下 int 占用 4 个字节的存储单元，64 位环境下 int 占用 8 个字节的存储单元。</li><li>short 的长度（步长）不能大于 int，long 的长度（步长）不能小于 int，long long 不能小于 long。</li></ul></li><li><p>③ 那么，各种整数数据类型在内存中所占存储单元的长度的公式就是 <code>2 ≤ sizeof(short) ≤ sizeof(int) ≤ sizeof(long) ≤ sizeof(long long)</code>，具体的存储空间由编译系统自行决定。其中，<code>sizeof</code> 是测量类型或变量、常量长度的<code>运算符</code>。</p></li></ul></div><div class="important custom-block github-alert"><p class="custom-block-title">IMPORTANT</p><p></p><ul><li>① 之所以这么规定，是为了可以让 C 语言长久使用，因为目前主流的 CPU 都是 64 位，但是在 C 语言刚刚出现的时候，CPU 还是以 8 位和 16 位为主。如果当时就将整型定死为 8 位或 16 位，那么现在我们肯定不会再学习 C 语言了。</li><li>② 整型分为有符号 signed 和无符号 unsigned 两种，默认是 signed。</li><li>③ 在实际开发中，<code>最常用的整数类型</code>就是 <code>int</code> 类型了，如果取值范围不够，就使用 long 或 long long 。</li><li>④ C 语言中的<code>格式占位符</code>非常多，只需要大致了解即可；因为，我们在实际开发中，一般都会使用 C++ 或 Rust 以及其它的高级编程语言，如：Java 等，早已经解决了必须通过<code>格式占位符</code>来才能将变量进行输入和输出。</li></ul></div><h3 id="_1-2-2-短整型-了解" tabindex="-1">1.2.2 短整型（了解） <a class="header-anchor" href="#_1-2-2-短整型-了解" aria-label="Permalink to "1.2.2 短整型（了解）""></a></h3><ul><li>语法：</li></ul><div class="language-c vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">unsigned</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> short</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> x </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 10</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> ;</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // 无符号短整型</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br></div></div><div class="language-c vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">short</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> x </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> -</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">10</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // 有符号短整型</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br></div></div><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><ul><li>① 有符号表示的是正数、负数和 0 ，即有正负号。无符号表示的是 0 和正数，即正整数，没有符号。</li><li>② 在 <code>printf</code> 中<code>无符号短整型（unsigned short）</code>的<code>格式占位符</code>是 <code>%hu</code> ，<code>有符号短整型（signed short）</code>的<code>格式占位符</code>是 <code>%hd</code> 。</li><li>③ 可以通过 <code>sizeof</code> 运算符获取<code>无符号短整型（unsigned short）</code> 和 <code>有符号短整型（signed short）</code> 的<code>存储空间（所占内存空间）</code>。</li><li>③ 可以通过 <code>#include <limits.h></code> 来获取 <code>无符号短整型（unsigned short）</code> 和<code>有符号短整型（signed short）</code>的<code>取值范围</code>。</li></ul></div><ul><li>示例：定义和打印短整型变量</li></ul><div class="language-c vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> <stdio.h></span></span>
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id="第一章-数据类型-⭐" tabindex="-1">第一章：数据类型（⭐） <a class="header-anchor" href="#第一章-数据类型-⭐" aria-label="Permalink to "第一章：数据类型（⭐）""></a></h1><h2 id="_1-1-概述" tabindex="-1">1.1 概述 <a class="header-anchor" href="#_1-1-概述" aria-label="Permalink to "1.1 概述""></a></h2><ul><li><p>根据<code>变量</code>中<code>存储</code>的<code>值</code>的<code>不同</code>，我们可以将<code>变量</code>分为两类：</p><ul><li><code>普通变量</code>：变量所对应的内存中存储的是<code>普通值</code>。</li><li><code>指针变量</code>：变量所对应的内存中存储的是<code>另一个变量的地址</code>。</li></ul></li><li><p>如下图所示：</p></li></ul><p><img src="'+t+'" alt="" loading="lazy"></p><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><p>普通变量和指针变量的相同点：</p><ul><li>普通变量有内存空间，指针变量也有内存空间。</li><li>普通变量有内存地址，指针变量也有内存地址。</li><li>普通变量所对应的内存空间中有值，指针变量所对应的内存空间中也有值。</li></ul><p>普通变量和指针变量的不同点：</p><ul><li>普通变量所对应的内存空间存储的是普通的值，如：整数、小数、字符等；指针变量所对应的内存空间存储的是另外一个变量的地址。</li><li>普通变量有普通变量的运算方式，而指针变量有指针变量的运算方式（后续讲解）。</li></ul></div><ul><li>那么，在 C 语言中变量的数据类型就可以这么划分，如下所示：</li></ul><p><img src="'+h+`" alt="" loading="lazy"></p><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><ul><li>根据<code>普通变量</code>中<code>存储</code>的<code>值</code>的类型不同，可以将<code>普通变量类型</code>划分为<code>基本数据类型</code>（整型、字符类型、浮点类型、布尔类型）和<code>复合数据类型</code>（数组类型、结构体类型、共用体类型、枚举类型）。</li><li>根据<code>指针变量</code>所<code>指向空间</code>中<code>存储</code>的<code>值</code>的类型不同，可以将<code>指针类型</code>分为<code>基本数据类型指针</code>、<code>复合数据类型指针</code>、<code>函数指针</code>、<code>数组指针</code>等，例如：如果指针所指向的空间保存的是 int 类型，那么该指针就是 int 类型的指针。</li></ul></div><h2 id="_1-2-整数类型" tabindex="-1">1.2 整数类型 <a class="header-anchor" href="#_1-2-整数类型" aria-label="Permalink to "1.2 整数类型""></a></h2><h3 id="_1-2-1-概述" tabindex="-1">1.2.1 概述 <a class="header-anchor" href="#_1-2-1-概述" aria-label="Permalink to "1.2.1 概述""></a></h3><ul><li>整数类型简称整型，用于存储整数值，如：12、20、50 等。</li><li>根据所占<code>内存空间</code>大小的不同，可以将整数类型划分为：</li><li>① 短整型：</li></ul><table tabindex="0"><thead><tr><th>类型</th><th>存储空间（内存空间）</th><th>取值范围</th></tr></thead><tbody><tr><td>unsigned short （无符号短整型）</td><td>2 字节</td><td>0 ~ 65,535 (2^16 - 1)</td></tr><tr><td>[signed] short（有符号短整型，默认）</td><td>2 字节</td><td>-32,768 (- 2^15) ~ 32,767 (2^15 -1)</td></tr></tbody></table><ul><li>② 整型：</li></ul><table tabindex="0"><thead><tr><th>类型</th><th>存储空间（内存空间）</th><th>取值范围</th></tr></thead><tbody><tr><td>unsigned int（无符号整型）</td><td>4 字节（通常）</td><td>0 ~ 4294967295 (0 ~2^32 -1)</td></tr><tr><td>[signed] int（有符号整型，默认）</td><td>4 字节（通常）</td><td>-2147483648（- 2^31） ~ 2147483647 (2^31-1)</td></tr></tbody></table><ul><li>③ 长整型：</li></ul><table tabindex="0"><thead><tr><th>类型</th><th>存储空间（内存空间）</th><th>取值范围</th></tr></thead><tbody><tr><td>unsigned long（无符号长整型）</td><td>4 字节（通常）</td><td>0 ~2^32 -1</td></tr><tr><td>[signed] long（有符号长整型，默认）</td><td>4 字节（通常）</td><td>- 2^31 ~ 2^31-1</td></tr></tbody></table><ul><li>④ 长长整型：</li></ul><table tabindex="0"><thead><tr><th>类型</th><th>存储空间（内存空间）</th><th>取值范围</th></tr></thead><tbody><tr><td>unsigned long long（无符号长整型）</td><td>8 字节（通常）</td><td>0 ~2^64 -1</td></tr><tr><td>[signed] long long（有符号长整型，默认）</td><td>8 字节（通常）</td><td>- 2^63 ~ 2^63-1</td></tr></tbody></table><div class="important custom-block github-alert"><p class="custom-block-title">IMPORTANT</p><p></p><ul><li><p>① 数据类型在内存中占用的存储单元（字节数），就称为该数据类型的长度（步长），如：short 占用 2 个字节的内存，就称 short 的长度（步长）是 2。</p></li><li><p>② C 语言并没有严格规定各种整数数据类型在内存中所占存储单元的长度，只做了宽泛的限制：</p><ul><li>short 至少占用 2 个字节的存储单元。</li><li>int 建议为一个机器字长（指计算机的处理器在一次操作中能够处理的二进制数据的位数，机器字长是处理器的“字”长度，它决定了处理器在一个时钟周期内能够处理的数据量，如：早期的计算机的处理器通常是 8 位的机器字长，意味着处理器一次只能处理 8 位（二进制）数据；之后的计算机的处理器有 16 位的机器字长，意味着处理器一次可以处理 16 位的数据；再之后计算机的处理器有 32 位或 64 位的机器字长，意味着处理器一次可以处理 32 位或 64位的数据）。即：32 位环境下 int 占用 4 个字节的存储单元，64 位环境下 int 占用 8 个字节的存储单元。</li><li>short 的长度（步长）不能大于 int，long 的长度（步长）不能小于 int，long long 不能小于 long。</li></ul></li><li><p>③ 那么，各种整数数据类型在内存中所占存储单元的长度的公式就是 <code>2 ≤ sizeof(short) ≤ sizeof(int) ≤ sizeof(long) ≤ sizeof(long long)</code>，具体的存储空间由编译系统自行决定。其中，<code>sizeof</code> 是测量类型或变量、常量长度的<code>运算符</code>。</p></li></ul></div><div class="important custom-block github-alert"><p class="custom-block-title">IMPORTANT</p><p></p><ul><li>① 之所以这么规定，是为了可以让 C 语言长久使用，因为目前主流的 CPU 都是 64 位，但是在 C 语言刚刚出现的时候，CPU 还是以 8 位和 16 位为主。如果当时就将整型定死为 8 位或 16 位，那么现在我们肯定不会再学习 C 语言了。</li><li>② 整型分为有符号 signed 和无符号 unsigned 两种，默认是 signed。</li><li>③ 在实际开发中，<code>最常用的整数类型</code>就是 <code>int</code> 类型了，如果取值范围不够，就使用 long 或 long long 。</li><li>④ C 语言中的<code>格式占位符</code>非常多，只需要大致了解即可；因为，我们在实际开发中，一般都会使用 C++ 或 Rust 以及其它的高级编程语言，如：Java 等，早已经解决了必须通过<code>格式占位符</code>来才能将变量进行输入和输出。</li></ul></div><h3 id="_1-2-2-短整型-了解" tabindex="-1">1.2.2 短整型（了解） <a class="header-anchor" href="#_1-2-2-短整型-了解" aria-label="Permalink to "1.2.2 短整型（了解）""></a></h3><ul><li>语法：</li></ul><div class="language-c vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">unsigned</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> short</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> x </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 10</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> ;</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // 无符号短整型</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br></div></div><div class="language-c vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">short</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> x </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> -</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">10</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // 有符号短整型</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br></div></div><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><ul><li>① 有符号表示的是正数、负数和 0 ，即有正负号。无符号表示的是 0 和正数，即正整数，没有符号。</li><li>② 在 <code>printf</code> 中<code>无符号短整型（unsigned short）</code>的<code>格式占位符</code>是 <code>%hu</code> ，<code>有符号短整型（signed short）</code>的<code>格式占位符</code>是 <code>%hd</code> 。</li><li>③ 可以通过 <code>sizeof</code> 运算符获取<code>无符号短整型（unsigned short）</code> 和 <code>有符号短整型（signed short）</code> 的<code>存储空间（所占内存空间）</code>。</li><li>③ 可以通过 <code>#include <limits.h></code> 来获取 <code>无符号短整型（unsigned short）</code> 和<code>有符号短整型（signed short）</code>的<code>取值范围</code>。</li></ul></div><ul><li>示例：定义和打印短整型变量</li></ul><div class="language-c vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> <stdio.h></span></span>
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">int</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> main</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">() {</span></span>
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@ -911,7 +911,7 @@ import{_ as p,c as n,j as s,a as i,a6 as a,o as l}from"./chunks/framework.hMCIpN
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<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> wprintf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(L</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">%ls</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> %ls\\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, a, b);</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br></div></div><h2 id="_3-4-c-语言到底使用什么编码" tabindex="-1">3.4 C 语言到底使用什么编码？ <a class="header-anchor" href="#_3-4-c-语言到底使用什么编码" aria-label="Permalink to "3.4 C 语言到底使用什么编码？""></a></h2><h3 id="_3-4-1-概述" tabindex="-1">3.4.1 概述 <a class="header-anchor" href="#_3-4-1-概述" aria-label="Permalink to "3.4.1 概述""></a></h3><ul><li>在 C 语言中，只有 <code>char</code> 类型的<code>窄字符</code>才会使用 ASCII 编码。而 <code>char</code> 类型的<code>窄字符串</code>、<code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>都不使用 ASCII 编码。</li><li><code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>使用 UTF-16 或者 UTF-32 编码，这个在上文已经讲解了，现在只剩下 <code>char</code> 类型的<code>窄字符串</code>没有讲解了，这也是下文的重点。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><ul><li>① 其实，对于<code>char</code> 类型的窄字符串，C 语言并没有规定使用哪一种特定的编码，只要选用的编码能够适应当前的环境即可。换言之，<code>char</code> 类型的窄字符串的编码与操作系统以及编译器有关。</li><li>② 但是，<code>char</code> 类型的窄字符串一定不是 ASCII 编码，因为 ASCII 编码只能显示拉丁体系的文字，而不能输出中文、日文、韩文等。</li><li>③ 讨论窄字符串的编码要从以下两个方面下手。</li></ul></div><h3 id="_3-4-2-源文件使用什么编码" tabindex="-1">3.4.2 源文件使用什么编码？ <a class="header-anchor" href="#_3-4-2-源文件使用什么编码" aria-label="Permalink to "3.4.2 源文件使用什么编码？""></a></h3><ul><li>源文件用来保存我们编写的代码，它最终会被存储到本地硬盘，或者远程服务器，这个时候就要尽量压缩文件体积，以节省硬盘空间或者网络流量，而代码中大部分的字符都是 ASCII 编码中的字符，用一个字节足以容纳，所以 UTF-8 编码是一个不错的选择。</li><li>UTF-8 兼容 ASCII，代码中的大部分字符可以用一个字节保存。另外，UTF-8 基于 Unicode，支持全世界的字符，我们编写的代码可以给全球的程序员使用，真正做到技术无国界。</li><li>常见的 IDE 或者编辑器，如：Sublime Text、Vim 等，在创建源文件的时候一般默认就是 UTF-8 编码。就算不是，我们也会推荐设置为 UTF-8 编码，如下所示：</li></ul><p><img src="`+ns+`" alt="" loading="lazy"></p><ul><li>对于 C 语言编译器来说，它往往支持多种编码格式的源文件。微软的 MSVC 、GCC 和 LLVM/Clang 都支持 UTF-8 和本地编码的源文件。</li></ul><h3 id="_3-4-3-窄字符串使用什么编码" tabindex="-1">3.4.3 窄字符串使用什么编码？ <a class="header-anchor" href="#_3-4-3-窄字符串使用什么编码" aria-label="Permalink to "3.4.3 窄字符串使用什么编码？""></a></h3><ul><li>前文提到，可以使用 puts 函数或 printf 函数来输出窄字符串，如下所示：</li></ul><div class="language-c vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> <stdio.h></span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br></div></div><h2 id="_3-4-c-语言到底使用什么编码" tabindex="-1">3.4 C 语言到底使用什么编码？ <a class="header-anchor" href="#_3-4-c-语言到底使用什么编码" aria-label="Permalink to "3.4 C 语言到底使用什么编码？""></a></h2><h3 id="_3-4-1-概述" tabindex="-1">3.4.1 概述 <a class="header-anchor" href="#_3-4-1-概述" aria-label="Permalink to "3.4.1 概述""></a></h3><ul><li>在 C 语言中，只有 <code>char</code> 类型的<code>窄字符</code>才会使用 ASCII 编码。而 <code>char</code> 类型的<code>窄字符串</code>、<code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>都不使用 ASCII 编码。</li><li><code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>使用 UTF-16 或者 UTF-32 编码，这个在上文已经讲解了，现在只剩下 <code>char</code> 类型的<code>窄字符串</code>没有讲解了，这也是下文的重点。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><ul><li>① 其实，对于<code>char</code> 类型的窄字符串，C 语言并没有规定使用哪一种特定的编码，只要选用的编码能够适应当前的环境即可。换言之，<code>char</code> 类型的窄字符串的编码与操作系统以及编译器有关。</li><li>② 但是，<code>char</code> 类型的窄字符串一定不是 ASCII 编码，因为 ASCII 编码只能显示拉丁体系的文字，而不能输出中文、日文、韩文等。</li><li>③ 讨论窄字符串的编码要从以下两个方面下手。</li></ul></div><h3 id="_3-4-2-源文件使用什么编码" tabindex="-1">3.4.2 源文件使用什么编码？ <a class="header-anchor" href="#_3-4-2-源文件使用什么编码" aria-label="Permalink to "3.4.2 源文件使用什么编码？""></a></h3><ul><li>源文件用来保存我们编写的代码，它最终会被存储到本地硬盘，或者远程服务器，这个时候就要尽量压缩文件体积，以节省硬盘空间或者网络流量，而代码中大部分的字符都是 ASCII 编码中的字符，用一个字节足以容纳，所以 UTF-8 编码是一个不错的选择。</li><li>UTF-8 兼容 ASCII，代码中的大部分字符可以用一个字节保存。另外，UTF-8 基于 Unicode，支持全世界的字符，我们编写的代码可以给全球的程序员使用，真正做到技术无国界。</li><li>常见的 IDE 或者编辑器，如：Sublime Text、Vim 等，在创建源文件的时候一般默认就是 UTF-8 编码。就算不是，我们也会推荐设置为 UTF-8 编码，如下所示：</li></ul><p><img src="`+ns+`" alt="" loading="lazy"></p><ul><li>对于 C 语言编译器来说，它往往支持多种编码格式的源文件。微软的 MSVC 、GCC 和 LLVM/Clang 都支持 UTF-8 和本地编码的源文件。</li></ul><h3 id="_3-4-3-窄字符串使用什么编码" tabindex="-1">3.4.3 窄字符串使用什么编码？ <a class="header-anchor" href="#_3-4-3-窄字符串使用什么编码" aria-label="Permalink to "3.4.3 窄字符串使用什么编码？""></a></h3><ul><li>前文提到，可以使用 <code>puts</code> 函数或 <code>printf</code> 函数来输出窄字符串，如下所示：</li></ul><div class="language-c vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> <stdio.h></span></span>
|
||||
<span class="line"></span>
|
||||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">int</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> main</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">() {</span></span>
|
||||
<span class="line"></span>
|
||||
@ -930,4 +930,4 @@ import{_ as p,c as n,j as s,a as i,a6 as a,o as l}from"./chunks/framework.hMCIpN
|
||||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">%s\\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, str4);</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // 是好人</span></span>
|
||||
<span class="line"></span>
|
||||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
|
||||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br></div></div><ul><li>像 <code>"我"</code>、<code>"爱你"</code>、<code>"你"</code>、<code>"是好人"</code>就是需要被处理的窄字符串，当程序运行的时候，它们会被加载进内存。并且，这些字符串中是包含中文的，所以一定不会使用 ASCII 编码。</li><li>其实，对于代码中需要被处理的窄字符串，不同的编译器差别还是挺大的： <ul><li>微软的 MSVC 编译器使用本地编码来保存这些字符。对于简体中文版的 Windows，使用的是 GBK 编码。</li><li>GCC、LLVM/Clang 编译器使用和源文件相同的编码来保存这些字符：如果源文件使用的是 UTF-8 编码，那么这些字符也使用 UTF-8 编码；如果源文件使用的是 GBK 编码，那么这些字符也使用 GBK 编码。</li></ul></li></ul><h3 id="_3-3-4-总结" tabindex="-1">3.3.4 总结 <a class="header-anchor" href="#_3-3-4-总结" aria-label="Permalink to "3.3.4 总结""></a></h3><ul><li>① 对于 <code>char</code> 类型的窄字符，在 C 语言中，使用的是 <code>ASCII</code> 编码。</li><li>② 对于 <code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>，在 C 语言中，使用的 <code>UTF-16</code> 编码或者 <code>UTF-32</code> 编码，它们都是基于 Unicode 字符集的。</li><li>③ 对于 <code>char</code> 类型的<code>窄字符串</code>，微软的 MSVC 编译器使用本地编码，GCC、LLVM/Clang 使用和源文件编码相同的编码。</li><li>④ 处理窄字符和处理宽字符使用的函数也不一样，如下所示： <ul><li><code><stdio.h></code> 头文件中的 <code>putchar</code>、<code>puts</code>、<code>printf</code> 函数只能用来处理窄字符。</li><li><code><wchar.h></code> 头文件中的 <code>putwchar</code>、<code>wprintf</code> 函数只能用来处理宽字符。</li></ul></li></ul><div class="important custom-block github-alert"><p class="custom-block-title">IMPORTANT</p><p></p><ul><li>① C 语言作为一门较为底层和古老的语言，对于字符的处理，之所以有这么多种方式，是因为历史遗留的原因和早期计算机资源有限的背景密切相关。</li><li>② 现代化的编程语言，如：C++ 、Java、Python 等都对字符串处理进行了改进和抽象，如：C++ 中的 <code>std::string</code> 和 Java 中的 <code>String</code>。并且，现代编程语言通常会自动管理内存，这样开发者就不需要手动处理字符串的内存分配和释放，从而减少了内存泄漏和缓冲区溢出等问题。当然，现代编程语言通常内置了对各种字符编码的支持，能够方便地处理不同语言的字符，如：Java 的 <code>String</code> 类和 Python 的 <code>str</code> 类型都默认支持 Unicode，可以轻松处理中文等多字节字符。</li></ul></div><h3 id="_3-3-5-编码字符集和运行字符集" tabindex="-1">3.3.5 编码字符集和运行字符集 <a class="header-anchor" href="#_3-3-5-编码字符集和运行字符集" aria-label="Permalink to "3.3.5 编码字符集和运行字符集""></a></h3><ul><li>源文件使用的字符集，通常称为<code>编码字符集</code>，即：写代码的时候所使用的字符集。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><p>源文件需要保存到硬盘，或者在网络上传输，使用的编码要尽量节省存储空间，同时要方便跨国交流，所以一般使用 UTF-8，这就是选择编码字符集的标准。</p></div><ul><li>程序中的字符或者字符串使用的字符集，通常称为<code>运行字符集</code>，即：程序运行时所使用的字符集。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><p>程序中的字符或者字符串，在程序运行后必须被载入到内存，才能进行后续的处理，对于这些字符来说，要尽量选用能够提高处理速度的编码，如：UTF-16 和 UTF-32 编码就能够快速定位（查找）字符。</p></div><ul><li>编码字符集是站在存储和传输的角度，而运行字符集是站在处理或者操作的角度，所以它们并不一定相同。</li></ul>`,371);function us(bs,ms,Cs,As,Bs,Ds){return l(),n("div",null,[ps,s("p",null,[s("mjx-container",ts,[(l(),n("svg",hs,ks)),ds])]),s("ul",null,[s("li",null,[s("p",null,[i("那么，结果就是："),s("mjx-container",rs,[(l(),n("svg",cs,gs)),os])])]),Fs]),ys])}const qs=p(ls,[["render",us]]);export{Ts as __pageData,qs as default};
|
||||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br></div></div><ul><li>像 <code>"我"</code>、<code>"爱你"</code>、<code>"你"</code>、<code>"是好人"</code>就是需要被处理的窄字符串，当程序运行的时候，它们会被加载进内存。并且，这些字符串中是包含中文的，所以一定不会使用 ASCII 编码。</li><li>其实，对于代码中需要被处理的窄字符串，不同的编译器差别还是挺大的： <ul><li>微软的 MSVC 编译器使用本地编码来保存这些字符。对于简体中文版的 Windows，使用的是 GBK 编码。</li><li>GCC、LLVM/Clang 编译器使用和源文件相同的编码来保存这些字符：如果源文件使用的是 UTF-8 编码，那么这些字符也使用 UTF-8 编码；如果源文件使用的是 GBK 编码，那么这些字符也使用 GBK 编码。</li></ul></li></ul><h3 id="_3-3-4-总结" tabindex="-1">3.3.4 总结 <a class="header-anchor" href="#_3-3-4-总结" aria-label="Permalink to "3.3.4 总结""></a></h3><ul><li>① 对于 <code>char</code> 类型的窄字符，在 C 语言中，使用的是 <code>ASCII</code> 编码。</li><li>② 对于 <code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>，在 C 语言中，使用的 <code>UTF-16</code> 编码或者 <code>UTF-32</code> 编码，它们都是基于 Unicode 字符集的。</li><li>③ 对于 <code>char</code> 类型的<code>窄字符串</code>，微软的 MSVC 编译器使用本地编码，GCC、LLVM/Clang 使用和源文件编码相同的编码。</li><li>④ 处理窄字符和处理宽字符使用的函数也不一样，如下所示： <ul><li><code><stdio.h></code> 头文件中的 <code>putchar</code>、<code>puts</code>、<code>printf</code> 函数只能用来处理窄字符。</li><li><code><wchar.h></code> 头文件中的 <code>putwchar</code>、<code>wprintf</code> 函数只能用来处理宽字符。</li></ul></li></ul><div class="important custom-block github-alert"><p class="custom-block-title">IMPORTANT</p><p></p><ul><li>① C 语言作为一门较为底层和古老的语言，对于字符的处理，之所以有这么多种方式，是因为历史遗留的原因和早期计算机资源有限的背景密切相关。</li><li>② 现代化的编程语言，如：C++ 、Java、Python 等都对字符串处理进行了改进和抽象，如：C++ 中的 <code>std::string</code> 和 Java 中的 <code>String</code>。并且，现代编程语言通常会自动管理内存，这样开发者就不需要手动处理字符串的内存分配和释放，从而减少了内存泄漏和缓冲区溢出等问题。当然，现代编程语言通常内置了对各种字符编码的支持，能够方便地处理不同语言的字符，如：Java 的 <code>String</code> 类和 Python 的 <code>str</code> 类型都默认支持 Unicode，可以轻松处理中文等多字节字符。</li></ul></div><h3 id="_3-3-5-编码字符集和运行字符集" tabindex="-1">3.3.5 编码字符集和运行字符集 <a class="header-anchor" href="#_3-3-5-编码字符集和运行字符集" aria-label="Permalink to "3.3.5 编码字符集和运行字符集""></a></h3><ul><li>源文件使用的字符集，通常称为<code>编码字符集</code>，即：写代码的时候所使用的字符集。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><p>源文件需要保存到硬盘，或者在网络上传输，使用的编码要尽量节省存储空间，同时要方便跨国交流，所以一般使用 UTF-8，这就是选择编码字符集的标准。</p></div><ul><li>程序中的字符或者字符串使用的字符集，通常称为<code>运行字符集</code>，即：程序运行时所使用的字符集。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><p>程序中的字符或者字符串，在程序运行后必须被载入到内存，才能进行后续的处理，对于这些字符来说，要尽量选用能够提高处理速度的编码，如：UTF-16 和 UTF-32 编码就能够快速定位（查找）字符。</p></div><ul><li><code>编码字符集</code>是站在<code>存储</code>和<code>传输</code>的角度，而<code>运行字符集</code>是站在<code>处理</code>或者<code>操作</code>的角度，所以它们并不一定相同。</li></ul>`,371);function us(bs,ms,Cs,As,Bs,Ds){return l(),n("div",null,[ps,s("p",null,[s("mjx-container",ts,[(l(),n("svg",hs,ks)),ds])]),s("ul",null,[s("li",null,[s("p",null,[i("那么，结果就是："),s("mjx-container",rs,[(l(),n("svg",cs,gs)),os])])]),Fs]),ys])}const qs=p(ls,[["render",us]]);export{Ts as __pageData,qs as default};
|
||||
@ -1 +1 @@
|
||||
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<span class="line"><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">[boot]</span></span>
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<span class="line"><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">EOF</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br></div></div><p><img src="/c/assets/177.FJeffiE3.gif" alt="" loading="lazy"></p><ul><li>③ 重启 WSL 实例：</li></ul><div class="language-shell vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">wsl</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> --shutdown</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> # 在 win 中的 cmd 或 PowerShell 执行该命令</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br></div></div><p><img src="/c/assets/178.Bee0LcNX.gif" alt="" loading="lazy"></p><ul><li>④ 查看是否启用成功：</li></ul><div class="language-shell vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">ps</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> -p</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 1</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> -o</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> comm=</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br></div></div><p><img src="/c/assets/179.BDqd1eDo.png" alt="" loading="lazy"></p></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><div class="edit-info" data-v-e257564d><!----><div class="last-updated" data-v-e257564d><p class="VPLastUpdated" data-v-e257564d data-v-e98dd255>上次更新: <time datetime="2024-08-27T03:11:14.000Z" data-v-e98dd255></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" data-v-e257564d><a class="VPLink link pager-link prev" href="/c/notes/01_c-basic/00_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>上一篇</span><span class="title" data-v-e257564d>编程基础</span><!--]--></a></div><div class="pager" data-v-e257564d><a class="VPLink link pager-link next" href="/c/notes/01_c-basic/02_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>下一篇</span><span class="title" data-v-e257564d>变量和进制</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-5d98c3a5 data-v-e315a0ad><div class="container" data-v-e315a0ad><p class="message" data-v-e315a0ad>Released under the MIT License.</p><p class="copyright" data-v-e315a0ad>Copyright © 2024 许大仙</p></div></footer><!--[--><!--]--></div></div>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br></div></div><ul><li>其实，C 语言的底层逻辑很简单，C 语言压根不关心你定义的是有符号数还是无符号数，它只关心内存（如果定义的是有符号数，那就按照有符号数的规则来存储；如果定义的是无符号数，那就按照无符号数的规则来存储）。换言之，有符号数可以按照无符号数的规则来输出，无符号数也可以按照有符号数的规则来输出，至于输出结果对不对，那是程序员的事情，和 C 语言没有任何关系。</li></ul><div class="important custom-block github-alert"><p class="custom-block-title">IMPORTANT</p><p></p><ul><li>① 实际开发中，<code>printf</code> 函数中的常量、变量或表达式，需要和格式占位符一一对应；否则，将会出现数据错误的现象。</li><li>② 正因为上述的原因，很多现代化的编程语言，如：Java 等，直接取消了无符号的概念。但是，很多数据库是使用 C 语言开发的，如：MySQL 等，就提供了创建数据表的字段为无符号类型的功能，即：<code>UNSIGNED</code>（正整数） ，不要感觉困惑！！！</li><li>③ 对于 <code>1000 0000 …… 0000 0000</code> 这个特殊的补码，无法按照上述的方法转换为原码，所以计算机直接规定这个补码对应的值就是 <code>-2³¹</code>，至于为什么，下节我们会详细分析。</li></ul></div></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><div class="edit-info" data-v-e257564d><!----><div class="last-updated" data-v-e257564d><p class="VPLastUpdated" data-v-e257564d data-v-e98dd255>上次更新: <time datetime="2024-08-26T06:06:37.000Z" data-v-e98dd255></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" data-v-e257564d><a class="VPLink link pager-link prev" href="/c/notes/01_c-basic/01_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>上一篇</span><span class="title" data-v-e257564d>C 语言入门</span><!--]--></a></div><div class="pager" data-v-e257564d><a class="VPLink link pager-link next" href="/c/notes/01_c-basic/03_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>下一篇</span><span class="title" data-v-e257564d>数据类型和运算符</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-5d98c3a5 data-v-e315a0ad><div class="container" data-v-e315a0ad><p class="message" data-v-e315a0ad>Released under the MIT License.</p><p class="copyright" data-v-e315a0ad>Copyright © 2024 许大仙</p></div></footer><!--[--><!--]--></div></div>
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<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> wprintf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(L</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">%ls</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> %ls\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, a, b);</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br></div></div><h2 id="_3-4-c-语言到底使用什么编码" tabindex="-1">3.4 C 语言到底使用什么编码？ <a class="header-anchor" href="#_3-4-c-语言到底使用什么编码" aria-label="Permalink to "3.4 C 语言到底使用什么编码？""></a></h2><h3 id="_3-4-1-概述" tabindex="-1">3.4.1 概述 <a class="header-anchor" href="#_3-4-1-概述" aria-label="Permalink to "3.4.1 概述""></a></h3><ul><li>在 C 语言中，只有 <code>char</code> 类型的<code>窄字符</code>才会使用 ASCII 编码。而 <code>char</code> 类型的<code>窄字符串</code>、<code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>都不使用 ASCII 编码。</li><li><code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>使用 UTF-16 或者 UTF-32 编码，这个在上文已经讲解了，现在只剩下 <code>char</code> 类型的<code>窄字符串</code>没有讲解了，这也是下文的重点。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><ul><li>① 其实，对于<code>char</code> 类型的窄字符串，C 语言并没有规定使用哪一种特定的编码，只要选用的编码能够适应当前的环境即可。换言之，<code>char</code> 类型的窄字符串的编码与操作系统以及编译器有关。</li><li>② 但是，<code>char</code> 类型的窄字符串一定不是 ASCII 编码，因为 ASCII 编码只能显示拉丁体系的文字，而不能输出中文、日文、韩文等。</li><li>③ 讨论窄字符串的编码要从以下两个方面下手。</li></ul></div><h3 id="_3-4-2-源文件使用什么编码" tabindex="-1">3.4.2 源文件使用什么编码？ <a class="header-anchor" href="#_3-4-2-源文件使用什么编码" aria-label="Permalink to "3.4.2 源文件使用什么编码？""></a></h3><ul><li>源文件用来保存我们编写的代码，它最终会被存储到本地硬盘，或者远程服务器，这个时候就要尽量压缩文件体积，以节省硬盘空间或者网络流量，而代码中大部分的字符都是 ASCII 编码中的字符，用一个字节足以容纳，所以 UTF-8 编码是一个不错的选择。</li><li>UTF-8 兼容 ASCII，代码中的大部分字符可以用一个字节保存。另外，UTF-8 基于 Unicode，支持全世界的字符，我们编写的代码可以给全球的程序员使用，真正做到技术无国界。</li><li>常见的 IDE 或者编辑器，如：Sublime Text、Vim 等，在创建源文件的时候一般默认就是 UTF-8 编码。就算不是，我们也会推荐设置为 UTF-8 编码，如下所示：</li></ul><p><img src="/c/assets/53.t8GRVYsu.png" alt="" loading="lazy"></p><ul><li>对于 C 语言编译器来说，它往往支持多种编码格式的源文件。微软的 MSVC 、GCC 和 LLVM/Clang 都支持 UTF-8 和本地编码的源文件。</li></ul><h3 id="_3-4-3-窄字符串使用什么编码" tabindex="-1">3.4.3 窄字符串使用什么编码？ <a class="header-anchor" href="#_3-4-3-窄字符串使用什么编码" aria-label="Permalink to "3.4.3 窄字符串使用什么编码？""></a></h3><ul><li>前文提到，可以使用 puts 函数或 printf 函数来输出窄字符串，如下所示：</li></ul><div class="language-c vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> <stdio.h></span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br></div></div><h2 id="_3-4-c-语言到底使用什么编码" tabindex="-1">3.4 C 语言到底使用什么编码？ <a class="header-anchor" href="#_3-4-c-语言到底使用什么编码" aria-label="Permalink to "3.4 C 语言到底使用什么编码？""></a></h2><h3 id="_3-4-1-概述" tabindex="-1">3.4.1 概述 <a class="header-anchor" href="#_3-4-1-概述" aria-label="Permalink to "3.4.1 概述""></a></h3><ul><li>在 C 语言中，只有 <code>char</code> 类型的<code>窄字符</code>才会使用 ASCII 编码。而 <code>char</code> 类型的<code>窄字符串</code>、<code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>都不使用 ASCII 编码。</li><li><code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>使用 UTF-16 或者 UTF-32 编码，这个在上文已经讲解了，现在只剩下 <code>char</code> 类型的<code>窄字符串</code>没有讲解了，这也是下文的重点。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><ul><li>① 其实，对于<code>char</code> 类型的窄字符串，C 语言并没有规定使用哪一种特定的编码，只要选用的编码能够适应当前的环境即可。换言之，<code>char</code> 类型的窄字符串的编码与操作系统以及编译器有关。</li><li>② 但是，<code>char</code> 类型的窄字符串一定不是 ASCII 编码，因为 ASCII 编码只能显示拉丁体系的文字，而不能输出中文、日文、韩文等。</li><li>③ 讨论窄字符串的编码要从以下两个方面下手。</li></ul></div><h3 id="_3-4-2-源文件使用什么编码" tabindex="-1">3.4.2 源文件使用什么编码？ <a class="header-anchor" href="#_3-4-2-源文件使用什么编码" aria-label="Permalink to "3.4.2 源文件使用什么编码？""></a></h3><ul><li>源文件用来保存我们编写的代码，它最终会被存储到本地硬盘，或者远程服务器，这个时候就要尽量压缩文件体积，以节省硬盘空间或者网络流量，而代码中大部分的字符都是 ASCII 编码中的字符，用一个字节足以容纳，所以 UTF-8 编码是一个不错的选择。</li><li>UTF-8 兼容 ASCII，代码中的大部分字符可以用一个字节保存。另外，UTF-8 基于 Unicode，支持全世界的字符，我们编写的代码可以给全球的程序员使用，真正做到技术无国界。</li><li>常见的 IDE 或者编辑器，如：Sublime Text、Vim 等，在创建源文件的时候一般默认就是 UTF-8 编码。就算不是，我们也会推荐设置为 UTF-8 编码，如下所示：</li></ul><p><img src="/c/assets/53.t8GRVYsu.png" alt="" loading="lazy"></p><ul><li>对于 C 语言编译器来说，它往往支持多种编码格式的源文件。微软的 MSVC 、GCC 和 LLVM/Clang 都支持 UTF-8 和本地编码的源文件。</li></ul><h3 id="_3-4-3-窄字符串使用什么编码" tabindex="-1">3.4.3 窄字符串使用什么编码？ <a class="header-anchor" href="#_3-4-3-窄字符串使用什么编码" aria-label="Permalink to "3.4.3 窄字符串使用什么编码？""></a></h3><ul><li>前文提到，可以使用 <code>puts</code> 函数或 <code>printf</code> 函数来输出窄字符串，如下所示：</li></ul><div class="language-c vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> <stdio.h></span></span>
|
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">int</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> main</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">() {</span></span>
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<span class="line"></span>
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@ -954,8 +954,8 @@
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<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">%s\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, str4);</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // 是好人</span></span>
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br></div></div><ul><li>像 <code>"我"</code>、<code>"爱你"</code>、<code>"你"</code>、<code>"是好人"</code>就是需要被处理的窄字符串，当程序运行的时候，它们会被加载进内存。并且，这些字符串中是包含中文的，所以一定不会使用 ASCII 编码。</li><li>其实，对于代码中需要被处理的窄字符串，不同的编译器差别还是挺大的： <ul><li>微软的 MSVC 编译器使用本地编码来保存这些字符。对于简体中文版的 Windows，使用的是 GBK 编码。</li><li>GCC、LLVM/Clang 编译器使用和源文件相同的编码来保存这些字符：如果源文件使用的是 UTF-8 编码，那么这些字符也使用 UTF-8 编码；如果源文件使用的是 GBK 编码，那么这些字符也使用 GBK 编码。</li></ul></li></ul><h3 id="_3-3-4-总结" tabindex="-1">3.3.4 总结 <a class="header-anchor" href="#_3-3-4-总结" aria-label="Permalink to "3.3.4 总结""></a></h3><ul><li>① 对于 <code>char</code> 类型的窄字符，在 C 语言中，使用的是 <code>ASCII</code> 编码。</li><li>② 对于 <code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>，在 C 语言中，使用的 <code>UTF-16</code> 编码或者 <code>UTF-32</code> 编码，它们都是基于 Unicode 字符集的。</li><li>③ 对于 <code>char</code> 类型的<code>窄字符串</code>，微软的 MSVC 编译器使用本地编码，GCC、LLVM/Clang 使用和源文件编码相同的编码。</li><li>④ 处理窄字符和处理宽字符使用的函数也不一样，如下所示： <ul><li><code><stdio.h></code> 头文件中的 <code>putchar</code>、<code>puts</code>、<code>printf</code> 函数只能用来处理窄字符。</li><li><code><wchar.h></code> 头文件中的 <code>putwchar</code>、<code>wprintf</code> 函数只能用来处理宽字符。</li></ul></li></ul><div class="important custom-block github-alert"><p class="custom-block-title">IMPORTANT</p><p></p><ul><li>① C 语言作为一门较为底层和古老的语言，对于字符的处理，之所以有这么多种方式，是因为历史遗留的原因和早期计算机资源有限的背景密切相关。</li><li>② 现代化的编程语言，如：C++ 、Java、Python 等都对字符串处理进行了改进和抽象，如：C++ 中的 <code>std::string</code> 和 Java 中的 <code>String</code>。并且，现代编程语言通常会自动管理内存，这样开发者就不需要手动处理字符串的内存分配和释放，从而减少了内存泄漏和缓冲区溢出等问题。当然，现代编程语言通常内置了对各种字符编码的支持，能够方便地处理不同语言的字符，如：Java 的 <code>String</code> 类和 Python 的 <code>str</code> 类型都默认支持 Unicode，可以轻松处理中文等多字节字符。</li></ul></div><h3 id="_3-3-5-编码字符集和运行字符集" tabindex="-1">3.3.5 编码字符集和运行字符集 <a class="header-anchor" href="#_3-3-5-编码字符集和运行字符集" aria-label="Permalink to "3.3.5 编码字符集和运行字符集""></a></h3><ul><li>源文件使用的字符集，通常称为<code>编码字符集</code>，即：写代码的时候所使用的字符集。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><p>源文件需要保存到硬盘，或者在网络上传输，使用的编码要尽量节省存储空间，同时要方便跨国交流，所以一般使用 UTF-8，这就是选择编码字符集的标准。</p></div><ul><li>程序中的字符或者字符串使用的字符集，通常称为<code>运行字符集</code>，即：程序运行时所使用的字符集。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><p>程序中的字符或者字符串，在程序运行后必须被载入到内存，才能进行后续的处理，对于这些字符来说，要尽量选用能够提高处理速度的编码，如：UTF-16 和 UTF-32 编码就能够快速定位（查找）字符。</p></div><ul><li>编码字符集是站在存储和传输的角度，而运行字符集是站在处理或者操作的角度，所以它们并不一定相同。</li></ul></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><div class="edit-info" data-v-e257564d><!----><div class="last-updated" data-v-e257564d><p class="VPLastUpdated" data-v-e257564d data-v-e98dd255>上次更新: <time datetime="2024-08-27T06:48:47.000Z" data-v-e98dd255></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" data-v-e257564d><a class="VPLink link pager-link prev" href="/c/notes/01_c-basic/02_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>上一篇</span><span class="title" data-v-e257564d>变量和进制</span><!--]--></a></div><div class="pager" data-v-e257564d><a class="VPLink link pager-link next" href="/c/notes/01_c-basic/04_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>下一篇</span><span class="title" data-v-e257564d>大话小数</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-5d98c3a5 data-v-e315a0ad><div class="container" data-v-e315a0ad><p class="message" data-v-e315a0ad>Released under the MIT License.</p><p class="copyright" data-v-e315a0ad>Copyright © 2024 许大仙</p></div></footer><!--[--><!--]--></div></div>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br></div></div><ul><li>像 <code>"我"</code>、<code>"爱你"</code>、<code>"你"</code>、<code>"是好人"</code>就是需要被处理的窄字符串，当程序运行的时候，它们会被加载进内存。并且，这些字符串中是包含中文的，所以一定不会使用 ASCII 编码。</li><li>其实，对于代码中需要被处理的窄字符串，不同的编译器差别还是挺大的： <ul><li>微软的 MSVC 编译器使用本地编码来保存这些字符。对于简体中文版的 Windows，使用的是 GBK 编码。</li><li>GCC、LLVM/Clang 编译器使用和源文件相同的编码来保存这些字符：如果源文件使用的是 UTF-8 编码，那么这些字符也使用 UTF-8 编码；如果源文件使用的是 GBK 编码，那么这些字符也使用 GBK 编码。</li></ul></li></ul><h3 id="_3-3-4-总结" tabindex="-1">3.3.4 总结 <a class="header-anchor" href="#_3-3-4-总结" aria-label="Permalink to "3.3.4 总结""></a></h3><ul><li>① 对于 <code>char</code> 类型的窄字符，在 C 语言中，使用的是 <code>ASCII</code> 编码。</li><li>② 对于 <code>wchar_t</code> 类型的<code>宽字符</code>和<code>宽字符串</code>，在 C 语言中，使用的 <code>UTF-16</code> 编码或者 <code>UTF-32</code> 编码，它们都是基于 Unicode 字符集的。</li><li>③ 对于 <code>char</code> 类型的<code>窄字符串</code>，微软的 MSVC 编译器使用本地编码，GCC、LLVM/Clang 使用和源文件编码相同的编码。</li><li>④ 处理窄字符和处理宽字符使用的函数也不一样，如下所示： <ul><li><code><stdio.h></code> 头文件中的 <code>putchar</code>、<code>puts</code>、<code>printf</code> 函数只能用来处理窄字符。</li><li><code><wchar.h></code> 头文件中的 <code>putwchar</code>、<code>wprintf</code> 函数只能用来处理宽字符。</li></ul></li></ul><div class="important custom-block github-alert"><p class="custom-block-title">IMPORTANT</p><p></p><ul><li>① C 语言作为一门较为底层和古老的语言，对于字符的处理，之所以有这么多种方式，是因为历史遗留的原因和早期计算机资源有限的背景密切相关。</li><li>② 现代化的编程语言，如：C++ 、Java、Python 等都对字符串处理进行了改进和抽象，如：C++ 中的 <code>std::string</code> 和 Java 中的 <code>String</code>。并且，现代编程语言通常会自动管理内存，这样开发者就不需要手动处理字符串的内存分配和释放，从而减少了内存泄漏和缓冲区溢出等问题。当然，现代编程语言通常内置了对各种字符编码的支持，能够方便地处理不同语言的字符，如：Java 的 <code>String</code> 类和 Python 的 <code>str</code> 类型都默认支持 Unicode，可以轻松处理中文等多字节字符。</li></ul></div><h3 id="_3-3-5-编码字符集和运行字符集" tabindex="-1">3.3.5 编码字符集和运行字符集 <a class="header-anchor" href="#_3-3-5-编码字符集和运行字符集" aria-label="Permalink to "3.3.5 编码字符集和运行字符集""></a></h3><ul><li>源文件使用的字符集，通常称为<code>编码字符集</code>，即：写代码的时候所使用的字符集。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><p>源文件需要保存到硬盘，或者在网络上传输，使用的编码要尽量节省存储空间，同时要方便跨国交流，所以一般使用 UTF-8，这就是选择编码字符集的标准。</p></div><ul><li>程序中的字符或者字符串使用的字符集，通常称为<code>运行字符集</code>，即：程序运行时所使用的字符集。</li></ul><div class="note custom-block github-alert"><p class="custom-block-title">NOTE</p><p></p><p>程序中的字符或者字符串，在程序运行后必须被载入到内存，才能进行后续的处理，对于这些字符来说，要尽量选用能够提高处理速度的编码，如：UTF-16 和 UTF-32 编码就能够快速定位（查找）字符。</p></div><ul><li><code>编码字符集</code>是站在<code>存储</code>和<code>传输</code>的角度，而<code>运行字符集</code>是站在<code>处理</code>或者<code>操作</code>的角度，所以它们并不一定相同。</li></ul></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><div class="edit-info" data-v-e257564d><!----><div class="last-updated" data-v-e257564d><p class="VPLastUpdated" data-v-e257564d data-v-e98dd255>上次更新: <time datetime="2024-08-27T06:59:36.000Z" data-v-e98dd255></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" data-v-e257564d><a class="VPLink link pager-link prev" href="/c/notes/01_c-basic/02_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>上一篇</span><span class="title" data-v-e257564d>变量和进制</span><!--]--></a></div><div class="pager" data-v-e257564d><a class="VPLink link pager-link next" href="/c/notes/01_c-basic/04_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>下一篇</span><span class="title" data-v-e257564d>大话小数</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-5d98c3a5 data-v-e315a0ad><div class="container" data-v-e315a0ad><p class="message" data-v-e315a0ad>Released under the MIT License.</p><p class="copyright" data-v-e315a0ad>Copyright © 2024 许大仙</p></div></footer><!--[--><!--]--></div></div>
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class="vpi-social-github" /></a><!--]--></div></div></div><!--]--><!--]--></div></div></div><!--[--><!--]--><button type="button" class="VPNavBarHamburger hamburger" aria-label="mobile navigation" aria-expanded="false" aria-controls="VPNavScreen" data-v-6aa21345 data-v-e5dd9c1c><span class="container" data-v-e5dd9c1c><span class="top" data-v-e5dd9c1c></span><span class="middle" data-v-e5dd9c1c></span><span class="bottom" data-v-e5dd9c1c></span></span></button></div></div></div></div><div class="divider" data-v-6aa21345><div class="divider-line" data-v-6aa21345></div></div></div><!----></header><div class="VPLocalNav has-sidebar empty" data-v-5d98c3a5 data-v-a6f0e41e><div class="container" data-v-a6f0e41e><button class="menu" aria-expanded="false" aria-controls="VPSidebarNav" data-v-a6f0e41e><span class="vpi-align-left menu-icon" data-v-a6f0e41e></span><span class="menu-text" data-v-a6f0e41e>Menu</span></button><div class="VPLocalNavOutlineDropdown" style="--vp-vh:0px;" data-v-a6f0e41e data-v-17a5e62e><button data-v-17a5e62e>返回顶部</button><!----></div></div></div><aside class="VPSidebar" data-v-5d98c3a5 data-v-319d5ca6><div class="curtain" data-v-319d5ca6></div><nav class="nav" id="VPSidebarNav" aria-labelledby="sidebar-aria-label" tabindex="-1" data-v-319d5ca6><span class="visually-hidden" id="sidebar-aria-label" data-v-319d5ca6> Sidebar Navigation </span><!--[--><!--]--><!--[--><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible has-active" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>C 语言基础</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/00_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>编程基础</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C 语言入门</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/02_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>变量和进制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/03_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>数据类型和运算符</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/04_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>大话小数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/05_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>流程控制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/06_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>数组</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/07_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>指针</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/08_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/09_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>预处理器</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/10_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>自定义数据类型</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/11_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>内存管理</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/12_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>文件操作</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-basic/13_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>调试工具和调试技巧（gdb和make）</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/14_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>常用库函数</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>C 语言高级</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>变量和内存分布</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/02_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>指针强化</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/03_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>结构体和文件的高级用法</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/04_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>链表和回调函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/05_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>编译过程和面向接口</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>项目构建工具</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><section class="VPSidebarItem level-1 collapsible collapsed" data-v-b7550ba0 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h3 class="text" data-v-b7550ba0>meson</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>meson 入门</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 collapsible collapsed" data-v-b7550ba0 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h3 class="text" data-v-b7550ba0>Cmake</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Cmake 入门</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_${commonDirectoryName}/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Conan </p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1 collapsible collapsed" data-v-b7550ba0 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h3 class="text" data-v-b7550ba0>Gradle</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Gradle 入门</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>Linux</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/04_linux/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Linux 初识和安装</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>C++ 基础</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 入门</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/02_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>变量、数据类型、运算符</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/03_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>流程控制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/04_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>数组</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/05_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>指针</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/06_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/07_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>自定义数据类型</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/08_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>类和对象</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/09_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 引用</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/10_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>继承和派生</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/11_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 多态和虚函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/12_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>运算符重载</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/13_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>模板</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/14_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 异常</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/15_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>面向对象进阶</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/16_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>文件操作和 IO 流</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/17_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>STL（标准模板库）</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><div class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><p class="text" data-v-b7550ba0>C++ 高级</p><!----></div><!----></div></div><div class="no-transition group" data-v-c40bc020><div class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><p class="text" data-v-b7550ba0>QT 桌面开发</p><!----></div><!----></div></div><div class="no-transition group" data-v-c40bc020><div class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><p class="text" data-v-b7550ba0>Linux 高并发服务器开发</p><!----></div><!----></div></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-5d98c3a5 data-v-1428d186><div class="VPDoc has-sidebar has-aside" data-v-1428d186 data-v-39a288b8><!--[--><!--]--><div class="container" data-v-39a288b8><div class="aside" data-v-39a288b8><div class="aside-curtain" data-v-39a288b8></div><div class="aside-container" data-v-39a288b8><div class="aside-content" data-v-39a288b8><div class="VPDocAside" data-v-39a288b8 data-v-3f215769><!--[--><!--]--><!--[--><!--]--><nav aria-labelledby="doc-outline-aria-label" class="VPDocAsideOutline" data-v-3f215769 data-v-a5bbad30><div class="content" data-v-a5bbad30><div class="outline-marker" data-v-a5bbad30></div><div aria-level="2" class="outline-title" id="doc-outline-aria-label" role="heading" data-v-a5bbad30>目录</div><ul class="VPDocOutlineItem root" data-v-a5bbad30 data-v-b933a997><!--[--><!--]--></ul></div></nav><!--[--><!--]--><div class="spacer" data-v-3f215769></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-39a288b8><div class="content-container" data-v-39a288b8><!--[--><!--]--><main class="main" data-v-39a288b8><div style="position:relative;" class="vp-doc _c_notes_01_c-basic_04_xdx_" data-v-39a288b8><div></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><div class="edit-info" data-v-e257564d><!----><div class="last-updated" data-v-e257564d><p class="VPLastUpdated" data-v-e257564d data-v-e98dd255>上次更新: <time datetime="2024-08-27T03:11:14.000Z" data-v-e98dd255></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" data-v-e257564d><a class="VPLink link pager-link prev" href="/c/notes/01_c-basic/03_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>上一篇</span><span class="title" data-v-e257564d>数据类型和运算符</span><!--]--></a></div><div class="pager" data-v-e257564d><a class="VPLink link pager-link next" href="/c/notes/01_c-basic/05_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>下一篇</span><span class="title" data-v-e257564d>流程控制</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-5d98c3a5 data-v-e315a0ad><div class="container" data-v-e315a0ad><p class="message" data-v-e315a0ad>Released under the MIT License.</p><p class="copyright" data-v-e315a0ad>Copyright © 2024 许大仙</p></div></footer><!--[--><!--]--></div></div>
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基础\",\"collapsed\":true,\"items\":[{\"text\":\"C++ 入门\",\"link\":\"/notes/05_cpp/01_xdx/\"},{\"text\":\"变量、数据类型、运算符\",\"link\":\"/notes/05_cpp/02_xdx/\"},{\"text\":\"流程控制\",\"link\":\"/notes/05_cpp/03_xdx/\"},{\"text\":\"数组\",\"link\":\"/notes/05_cpp/04_xdx/\"},{\"text\":\"指针\",\"link\":\"/notes/05_cpp/05_xdx/\"},{\"text\":\"函数\",\"link\":\"/notes/05_cpp/06_xdx/\"},{\"text\":\"自定义数据类型\",\"link\":\"/notes/05_cpp/07_xdx/\"},{\"text\":\"类和对象\",\"link\":\"/notes/05_cpp/08_xdx/\"},{\"text\":\"C++ 引用\",\"link\":\"/notes/05_cpp/09_xdx/\"},{\"text\":\"继承和派生\",\"link\":\"/notes/05_cpp/10_xdx/\"},{\"text\":\"C++ 多态和虚函数\",\"link\":\"/notes/05_cpp/11_xdx/\"},{\"text\":\"运算符重载\",\"link\":\"/notes/05_cpp/12_xdx/\"},{\"text\":\"模板\",\"link\":\"/notes/05_cpp/13_xdx/\"},{\"text\":\"C++ 异常\",\"link\":\"/notes/05_cpp/14_xdx/\"},{\"text\":\"面向对象进阶\",\"link\":\"/notes/05_cpp/15_xdx/\"},{\"text\":\"文件操作和 IO 流\",\"link\":\"/notes/05_cpp/16_xdx/\"},{\"text\":\"STL（标准模板库）\",\"link\":\"/notes/05_cpp/17_xdx/\"}]},{\"text\":\"C++ 高级\",\"collapsed\":true,\"items\":[]},{\"text\":\"QT 桌面开发\",\"collapsed\":true,\"items\":[]},{\"text\":\"Linux 高并发服务器开发\",\"collapsed\":true,\"items\":[]}]},\"socialLinks\":[{\"icon\":\"github\",\"link\":\"https://github.com/Aurorxa\"}],\"docFooter\":{\"prev\":\"上一篇\",\"next\":\"下一篇\"},\"darkModeSwitchLabel\":\"深浅模式\",\"footer\":{\"message\":\"Released under the MIT License.\",\"copyright\":\"Copyright © 2024 许大仙\"},\"outline\":{\"level\":[1,6],\"label\":\"目录\"},\"outlineTitle\":\"当前页大纲\"},\"locales\":{},\"scrollOffset\":134,\"cleanUrls\":false}");</script>
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@ -774,7 +774,7 @@
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
|
||||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br></div></div></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><div class="edit-info" data-v-e257564d><!----><div class="last-updated" data-v-e257564d><p class="VPLastUpdated" data-v-e257564d data-v-e98dd255>上次更新: <time datetime="2024-08-27T03:11:14.000Z" data-v-e98dd255></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" data-v-e257564d><a class="VPLink link pager-link prev" href="/c/notes/01_c-basic/04_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>上一篇</span><span class="title" data-v-e257564d>大话小数</span><!--]--></a></div><div class="pager" data-v-e257564d><a class="VPLink link pager-link next" href="/c/notes/01_c-basic/06_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>下一篇</span><span class="title" data-v-e257564d>数组</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-5d98c3a5 data-v-e315a0ad><div class="container" data-v-e315a0ad><p class="message" data-v-e315a0ad>Released under the MIT License.</p><p class="copyright" data-v-e315a0ad>Copyright © 2024 许大仙</p></div></footer><!--[--><!--]--></div></div>
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<script>window.__VP_HASH_MAP__=JSON.parse("{\"index.md\":\"Dga0tMF5\",\"notes_01_c-basic_00_xdx_index.md\":\"BRC7slaL\",\"notes_01_c-basic_01_xdx_index.md\":\"Fg4OXydV\",\"notes_01_c-basic_02_xdx_index.md\":\"CC2Mg9VD\",\"notes_01_c-basic_03_xdx_index.md\":\"BMGN1qyv\",\"notes_01_c-basic_04_xdx_index.md\":\"ySxH8sG-\",\"notes_01_c-basic_05_xdx_index.md\":\"DUbOwEts\",\"notes_01_c-basic_06_xdx_index.md\":\"CV_r2WNu\",\"notes_01_c-basic_07_xdx_index.md\":\"CE9q5cmu\",\"notes_04_linux_01_xdx_index.md\":\"C9IatKsj\",\"notes_about_index.md\":\"DLuQgC_8\",\"notes_index.md\":\"CeV-uJ5V\"}");window.__VP_SITE_DATA__=JSON.parse("{\"lang\":\"zh-CN\",\"dir\":\"ltr\",\"title\":\"许大仙\",\"titleTemplate\":\"Hi，终于等到你\",\"description\":\"许大仙前端、Java、大数据、云原生\",\"base\":\"/c/\",\"head\":[],\"router\":{\"prefetchLinks\":true},\"appearance\":true,\"themeConfig\":{\"lastUpdatedText\":\"上次更新\",\"returnToTopLabel\":\"返回顶部\",\"search\":{\"provider\":\"local\"},\"logo\":\"/logo.svg\",\"nav\":[{\"text\":\"首页\",\"link\":\"https://aexiar.github.io/\"},{\"text\":\"计组6件套\",\"link\":\"https://aexiar.github.io/coa6/notes/\"},{\"text\":\"编程语言\",\"items\":[{\"text\":\"c/c++\",\"link\":\"/notes/\"},{\"text\":\"前端\",\"link\":\"https://aexiar.github.io/web-design/notes/\"},{\"text\":\"Java\",\"link\":\"https://aexiar.github.io/java/notes/\"},{\"text\":\"大数据\",\"link\":\"https://aexiar.github.io/big-data/notes/\"},{\"text\":\"云原生\",\"link\":\"https://aexiar.github.io/linux/notes/\"},{\"text\":\"Go\",\"link\":\"https://aexiar.github.io/go/notes/\"},{\"text\":\"Python\",\"link\":\"https://aexiar.github.io/python/notes/\"}]},{\"text\":\"数据库\",\"link\":\"https://aexiar.github.io/db/notes/\"},{\"text\":\"开源软件\",\"link\":\"https://aexiar.github.io/open-software/notes/\"},{\"text\":\"关于我\",\"link\":\"/notes/about/\"}],\"sidebar\":{\"/notes/\":[{\"text\":\"C 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<script>window.__VP_HASH_MAP__=JSON.parse("{\"index.md\":\"Dga0tMF5\",\"notes_01_c-basic_00_xdx_index.md\":\"BRC7slaL\",\"notes_01_c-basic_01_xdx_index.md\":\"Fg4OXydV\",\"notes_01_c-basic_02_xdx_index.md\":\"CC2Mg9VD\",\"notes_01_c-basic_03_xdx_index.md\":\"BPKG_fTF\",\"notes_01_c-basic_04_xdx_index.md\":\"ySxH8sG-\",\"notes_01_c-basic_05_xdx_index.md\":\"DUbOwEts\",\"notes_01_c-basic_06_xdx_index.md\":\"CV_r2WNu\",\"notes_01_c-basic_07_xdx_index.md\":\"CE9q5cmu\",\"notes_04_linux_01_xdx_index.md\":\"C9IatKsj\",\"notes_about_index.md\":\"DLuQgC_8\",\"notes_index.md\":\"CeV-uJ5V\"}");window.__VP_SITE_DATA__=JSON.parse("{\"lang\":\"zh-CN\",\"dir\":\"ltr\",\"title\":\"许大仙\",\"titleTemplate\":\"Hi，终于等到你\",\"description\":\"许大仙前端、Java、大数据、云原生\",\"base\":\"/c/\",\"head\":[],\"router\":{\"prefetchLinks\":true},\"appearance\":true,\"themeConfig\":{\"lastUpdatedText\":\"上次更新\",\"returnToTopLabel\":\"返回顶部\",\"search\":{\"provider\":\"local\"},\"logo\":\"/logo.svg\",\"nav\":[{\"text\":\"首页\",\"link\":\"https://aexiar.github.io/\"},{\"text\":\"计组6件套\",\"link\":\"https://aexiar.github.io/coa6/notes/\"},{\"text\":\"编程语言\",\"items\":[{\"text\":\"c/c++\",\"link\":\"/notes/\"},{\"text\":\"前端\",\"link\":\"https://aexiar.github.io/web-design/notes/\"},{\"text\":\"Java\",\"link\":\"https://aexiar.github.io/java/notes/\"},{\"text\":\"大数据\",\"link\":\"https://aexiar.github.io/big-data/notes/\"},{\"text\":\"云原生\",\"link\":\"https://aexiar.github.io/linux/notes/\"},{\"text\":\"Go\",\"link\":\"https://aexiar.github.io/go/notes/\"},{\"text\":\"Python\",\"link\":\"https://aexiar.github.io/python/notes/\"}]},{\"text\":\"数据库\",\"link\":\"https://aexiar.github.io/db/notes/\"},{\"text\":\"开源软件\",\"link\":\"https://aexiar.github.io/open-software/notes/\"},{\"text\":\"关于我\",\"link\":\"/notes/about/\"}],\"sidebar\":{\"/notes/\":[{\"text\":\"C 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|
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@ -722,7 +722,7 @@
|
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<span class="line"></span>
|
||||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
|
||||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br></div></div><div class="warning custom-block github-alert"><p class="custom-block-title">WARNING</p><p></p><p>在上述示例中，<code>arr</code> 和 <code>&arr</code> 的值是一样的，但是对应的含义是不同的。</p><ul><li>① <code>arr</code> 是数组名，在大多数情况下会转换为数组第一个元素的地址，即：<code>arr</code> 等价于 <code>&arr[0]</code>，其数据类型是 <code>int *</code>。</li><li>② <code>&arr</code>是数组名的地址，即整个数组的地址，它指向数组本身，并不是数组第一个元素的地址，<code>&arr</code> 的数据类型是 <code>int(*)[3]</code>。</li></ul></div></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><div class="edit-info" data-v-e257564d><!----><div class="last-updated" data-v-e257564d><p class="VPLastUpdated" data-v-e257564d data-v-e98dd255>上次更新: <time datetime="2024-08-27T03:11:14.000Z" data-v-e98dd255></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" data-v-e257564d><a class="VPLink link pager-link prev" href="/c/notes/01_c-basic/05_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>上一篇</span><span class="title" data-v-e257564d>流程控制</span><!--]--></a></div><div class="pager" data-v-e257564d><a class="VPLink link pager-link next" href="/c/notes/01_c-basic/07_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>下一篇</span><span class="title" data-v-e257564d>指针</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-5d98c3a5 data-v-e315a0ad><div class="container" data-v-e315a0ad><p class="message" data-v-e315a0ad>Released under the MIT License.</p><p class="copyright" data-v-e315a0ad>Copyright © 2024 许大仙</p></div></footer><!--[--><!--]--></div></div>
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@ -103,7 +103,7 @@
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"Address of array: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">%p\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">arr</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // 返回整个数组的地址</span></span>
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<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"Address of pointer: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">%p\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">ptr</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // 返回指针变量ptr的地址</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div></li></ol><p>综上所述，通过这些示例和解释，可以看出数组名虽然在某些场合下可以像指针一样使用，但它并不是一个真正的指针变量，而是一个常量，表示数组的首地址。</p></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><div class="edit-info" data-v-e257564d><!----><div class="last-updated" data-v-e257564d><p class="VPLastUpdated" data-v-e257564d data-v-e98dd255>上次更新: <time datetime="2024-08-27T03:11:14.000Z" data-v-e98dd255></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" data-v-e257564d><a class="VPLink link pager-link prev" href="/c/notes/01_c-basic/06_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>上一篇</span><span class="title" data-v-e257564d>数组</span><!--]--></a></div><div class="pager" data-v-e257564d><a class="VPLink link pager-link next" href="/c/notes/01_c-basic/08_xdx/" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>下一篇</span><span class="title" data-v-e257564d>函数</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-5d98c3a5 data-v-e315a0ad><div class="container" data-v-e315a0ad><p class="message" data-v-e315a0ad>Released under the MIT License.</p><p class="copyright" data-v-e315a0ad>Copyright © 2024 许大仙</p></div></footer><!--[--><!--]--></div></div>
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class="vpi-social-github" /></a><!--]--></div></div></div><!--]--><!--]--></div></div></div><!--[--><!--]--><button type="button" class="VPNavBarHamburger hamburger" aria-label="mobile navigation" aria-expanded="false" aria-controls="VPNavScreen" data-v-6aa21345 data-v-e5dd9c1c><span class="container" data-v-e5dd9c1c><span class="top" data-v-e5dd9c1c></span><span class="middle" data-v-e5dd9c1c></span><span class="bottom" data-v-e5dd9c1c></span></span></button></div></div></div></div><div class="divider" data-v-6aa21345><div class="divider-line" data-v-6aa21345></div></div></div><!----></header><div class="VPLocalNav has-sidebar empty" data-v-5d98c3a5 data-v-a6f0e41e><div class="container" data-v-a6f0e41e><button class="menu" aria-expanded="false" aria-controls="VPSidebarNav" data-v-a6f0e41e><span class="vpi-align-left menu-icon" data-v-a6f0e41e></span><span class="menu-text" data-v-a6f0e41e>Menu</span></button><div class="VPLocalNavOutlineDropdown" style="--vp-vh:0px;" data-v-a6f0e41e data-v-17a5e62e><button data-v-17a5e62e>返回顶部</button><!----></div></div></div><aside class="VPSidebar" data-v-5d98c3a5 data-v-319d5ca6><div class="curtain" data-v-319d5ca6></div><nav class="nav" id="VPSidebarNav" aria-labelledby="sidebar-aria-label" tabindex="-1" data-v-319d5ca6><span class="visually-hidden" id="sidebar-aria-label" data-v-319d5ca6> Sidebar Navigation </span><!--[--><!--]--><!--[--><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>C 语言基础</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/00_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>编程基础</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C 语言入门</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/02_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>变量和进制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/03_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>数据类型和运算符</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/04_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>大话小数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/05_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>流程控制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/06_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>数组</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/07_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>指针</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/08_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/09_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>预处理器</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/10_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>自定义数据类型</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/11_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>内存管理</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/12_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>文件操作</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-basic/13_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>调试工具和调试技巧（gdb和make）</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/14_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>常用库函数</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>C 语言高级</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>变量和内存分布</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/02_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>指针强化</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/03_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>结构体和文件的高级用法</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/04_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>链表和回调函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/05_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>编译过程和面向接口</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>项目构建工具</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><section class="VPSidebarItem level-1 collapsible collapsed" data-v-b7550ba0 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h3 class="text" data-v-b7550ba0>meson</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>meson 入门</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 collapsible collapsed" data-v-b7550ba0 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h3 class="text" data-v-b7550ba0>Cmake</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Cmake 入门</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_${commonDirectoryName}/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Conan </p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1 collapsible collapsed" data-v-b7550ba0 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h3 class="text" data-v-b7550ba0>Gradle</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Gradle 入门</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>Linux</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/04_linux/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Linux 初识和安装</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>C++ 基础</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 入门</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/02_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>变量、数据类型、运算符</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/03_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>流程控制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/04_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>数组</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/05_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>指针</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/06_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/07_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>自定义数据类型</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/08_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>类和对象</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/09_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 引用</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/10_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>继承和派生</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/11_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 多态和虚函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/12_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>运算符重载</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/13_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>模板</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/14_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 异常</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/15_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>面向对象进阶</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/16_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>文件操作和 IO 流</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/17_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>STL（标准模板库）</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><div class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><p class="text" data-v-b7550ba0>C++ 高级</p><!----></div><!----></div></div><div class="no-transition group" data-v-c40bc020><div class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><p class="text" data-v-b7550ba0>QT 桌面开发</p><!----></div><!----></div></div><div class="no-transition group" data-v-c40bc020><div class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><p class="text" data-v-b7550ba0>Linux 高并发服务器开发</p><!----></div><!----></div></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-5d98c3a5 data-v-1428d186><div class="VPDoc has-sidebar has-aside" data-v-1428d186 data-v-39a288b8><!--[--><!--]--><div class="container" data-v-39a288b8><div class="aside" data-v-39a288b8><div class="aside-curtain" data-v-39a288b8></div><div class="aside-container" data-v-39a288b8><div class="aside-content" data-v-39a288b8><div class="VPDocAside" data-v-39a288b8 data-v-3f215769><!--[--><!--]--><!--[--><!--]--><nav aria-labelledby="doc-outline-aria-label" class="VPDocAsideOutline" data-v-3f215769 data-v-a5bbad30><div class="content" data-v-a5bbad30><div class="outline-marker" data-v-a5bbad30></div><div aria-level="2" class="outline-title" id="doc-outline-aria-label" role="heading" data-v-a5bbad30>目录</div><ul class="VPDocOutlineItem root" data-v-a5bbad30 data-v-b933a997><!--[--><!--]--></ul></div></nav><!--[--><!--]--><div 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class="vpi-social-github" /></a><!--]--></div></div></div><!--]--><!--]--></div></div></div><!--[--><!--]--><button type="button" class="VPNavBarHamburger hamburger" aria-label="mobile navigation" aria-expanded="false" aria-controls="VPNavScreen" data-v-6aa21345 data-v-e5dd9c1c><span class="container" data-v-e5dd9c1c><span class="top" data-v-e5dd9c1c></span><span class="middle" data-v-e5dd9c1c></span><span class="bottom" data-v-e5dd9c1c></span></span></button></div></div></div></div><div class="divider" data-v-6aa21345><div class="divider-line" data-v-6aa21345></div></div></div><!----></header><div class="VPLocalNav has-sidebar empty" data-v-5d98c3a5 data-v-a6f0e41e><div class="container" data-v-a6f0e41e><button class="menu" aria-expanded="false" aria-controls="VPSidebarNav" data-v-a6f0e41e><span class="vpi-align-left menu-icon" data-v-a6f0e41e></span><span class="menu-text" data-v-a6f0e41e>Menu</span></button><div class="VPLocalNavOutlineDropdown" style="--vp-vh:0px;" data-v-a6f0e41e data-v-17a5e62e><button data-v-17a5e62e>返回顶部</button><!----></div></div></div><aside class="VPSidebar" data-v-5d98c3a5 data-v-319d5ca6><div class="curtain" data-v-319d5ca6></div><nav class="nav" id="VPSidebarNav" aria-labelledby="sidebar-aria-label" tabindex="-1" data-v-319d5ca6><span class="visually-hidden" id="sidebar-aria-label" data-v-319d5ca6> Sidebar Navigation </span><!--[--><!--]--><!--[--><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>C 语言基础</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/00_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>编程基础</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C 语言入门</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/02_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>变量和进制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/03_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>数据类型和运算符</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/04_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>大话小数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/05_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>流程控制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/06_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>数组</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/07_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>指针</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/08_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/09_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>预处理器</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/10_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>自定义数据类型</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/11_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>内存管理</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/12_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>文件操作</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-basic/13_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>调试工具和调试技巧（gdb和make）</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/01_c-basic/14_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>常用库函数</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>C 语言高级</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>变量和内存分布</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/02_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>指针强化</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/03_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>结构体和文件的高级用法</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/04_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>链表和回调函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/02_c-advance/05_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>编译过程和面向接口</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>项目构建工具</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><section class="VPSidebarItem level-1 collapsible collapsed" data-v-b7550ba0 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h3 class="text" data-v-b7550ba0>meson</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>meson 入门</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 collapsible collapsed" data-v-b7550ba0 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h3 class="text" data-v-b7550ba0>Cmake</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Cmake 入门</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_${commonDirectoryName}/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Conan </p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1 collapsible collapsed" data-v-b7550ba0 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h3 class="text" data-v-b7550ba0>Gradle</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-2 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/03_build/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Gradle 入门</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>Linux</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/04_linux/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>Linux 初识和安装</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><h2 class="text" data-v-b7550ba0>C++ 基础</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b7550ba0><span class="vpi-chevron-right caret-icon" data-v-b7550ba0></span></div></div><div class="items" data-v-b7550ba0><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/01_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 入门</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/02_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>变量、数据类型、运算符</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/03_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>流程控制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/04_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>数组</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/05_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>指针</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/06_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/07_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>自定义数据类型</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/08_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>类和对象</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/09_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 引用</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/10_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>继承和派生</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/11_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 多态和虚函数</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/12_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>运算符重载</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/13_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>模板</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/14_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>C++ 异常</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/15_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>面向对象进阶</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/16_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>文件操作和 IO 流</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b7550ba0 data-v-b7550ba0><div class="item" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><a class="VPLink link link" href="/c/notes/05_cpp/17_xdx/" data-v-b7550ba0><!--[--><p class="text" data-v-b7550ba0>STL（标准模板库）</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><div class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><p class="text" data-v-b7550ba0>C++ 高级</p><!----></div><!----></div></div><div class="no-transition group" data-v-c40bc020><div class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><p class="text" data-v-b7550ba0>QT 桌面开发</p><!----></div><!----></div></div><div class="no-transition group" data-v-c40bc020><div class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b7550ba0><div class="item" role="button" tabindex="0" data-v-b7550ba0><div class="indicator" data-v-b7550ba0></div><p class="text" data-v-b7550ba0>Linux 高并发服务器开发</p><!----></div><!----></div></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-5d98c3a5 data-v-1428d186><div class="VPDoc has-sidebar has-aside" data-v-1428d186 data-v-39a288b8><!--[--><!--]--><div class="container" data-v-39a288b8><div class="aside" data-v-39a288b8><div class="aside-curtain" data-v-39a288b8></div><div class="aside-container" data-v-39a288b8><div class="aside-content" data-v-39a288b8><div class="VPDocAside" data-v-39a288b8 data-v-3f215769><!--[--><!--]--><!--[--><!--]--><nav aria-labelledby="doc-outline-aria-label" class="VPDocAsideOutline" data-v-3f215769 data-v-a5bbad30><div class="content" data-v-a5bbad30><div class="outline-marker" data-v-a5bbad30></div><div aria-level="2" class="outline-title" id="doc-outline-aria-label" role="heading" data-v-a5bbad30>目录</div><ul class="VPDocOutlineItem root" data-v-a5bbad30 data-v-b933a997><!--[--><!--]--></ul></div></nav><!--[--><!--]--><div class="spacer" data-v-3f215769></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-39a288b8><div class="content-container" data-v-39a288b8><!--[--><!--]--><main class="main" data-v-39a288b8><div style="position:relative;" class="vp-doc _c_notes_" data-v-39a288b8><div><h1 id="c-c-学科" tabindex="-1">c/c++ 学科 <a class="header-anchor" href="#c-c-学科" aria-label="Permalink to "c/c++ 学科""></a></h1><hr><iframe src="https://roadmap.sh/r/embed?id=6695c8262b17b182cbf4b520" width="115%" height="500px" frameBorder="0"></iframe></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><div class="edit-info" data-v-e257564d><!----><div class="last-updated" data-v-e257564d><p class="VPLastUpdated" data-v-e257564d data-v-e98dd255>上次更新: <time datetime="2024-08-01T02:00:11.000Z" data-v-e98dd255></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span 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