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class="VPLink link link" href="/c/notes/01_c-basic/02_xdx/" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>变量和进制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b8d55f3b data-v-b8d55f3b><div class="item" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><a class="VPLink link link" href="/c/notes/01_c-basic/03_xdx/" data-v-b8d55f3b><!--[--><p class="text" data-v-b8d55f3b>数据类型和运算符</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="group" data-v-575e6a36><div class="VPSidebarItem level-0 collapsible collapsed" data-v-575e6a36 data-v-b8d55f3b><div class="item" role="button" tabindex="0" data-v-b8d55f3b><div class="indicator" data-v-b8d55f3b></div><p class="text" data-v-b8d55f3b>C 语言高级</p><!----></div><!----></div></div><div class="group" data-v-575e6a36><div class="VPSidebarItem level-0 collapsible collapsed" data-v-575e6a36 data-v-b8d55f3b><div class="item" role="button" tabindex="0" 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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_03_xdx_" data-v-39a288b8><div><h1 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 &quot;第一章:数据类型(⭐)&quot;"></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 &quot;1.1 概述&quot;"></a></h2><ul><li><p>根据<code>变量</code><code>存储值</code>的不同,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="/c/assets/1.L8V3GBrc.png" alt=""></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="/c/assets/2.BkF1yWLn.png" alt=""></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>中存储的<code></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><code>指向空间</code>存储<code></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 &quot;1.2 整数类型&quot;"></a></h2><h1 id="第二章-运算符" tabindex="-1">第二章:运算符 <a class="header-anchor" href="#第二章-运算符" aria-label="Permalink to &quot;第二章:运算符&quot;"></a></h1><h1 id="第三章-随机数" tabindex="-1">第三章:随机数 <a class="header-anchor" href="#第三章-随机数" aria-label="Permalink to &quot;第三章:随机数&quot;"></a></h1></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-d4a0bba5><!--[--><!--]--><div class="edit-info" data-v-d4a0bba5><!----><div class="last-updated" data-v-d4a0bba5><p class="VPLastUpdated" data-v-d4a0bba5 data-v-7e05ebdb>上次更新: <time datetime="2024-07-16T03:04:36.000Z" data-v-7e05ebdb></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-d4a0bba5><span class="visually-hidden" id="doc-footer-aria-label" data-v-d4a0bba5>Pager</span><div class="pager" data-v-d4a0bba5><a class="VPLink link pager-link prev" href="/c/notes/01_c-basic/02_xdx/" data-v-d4a0bba5><!--[--><span class="desc" data-v-d4a0bba5>上一篇</span><span class="title" 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