diff --git a/docs/notes/02_c-leap/07_xdx/index.md b/docs/notes/02_c-leap/07_xdx/index.md
index 50ab7c9..89c68b2 100644
--- a/docs/notes/02_c-leap/07_xdx/index.md
+++ b/docs/notes/02_c-leap/07_xdx/index.md
@@ -2080,10 +2080,167 @@ int main() {
 
 ### 2.7.3 结构体指针指向结构体数组
 
+* 语法：
+
+```c
+struct 结构体名 * 结构体指针变量名 = 结构体数组名;
+```
+
+> [!NOTE]
+>
+> 和普通数组一样，在表达式中会转换为数组中第 0 个元素的首地址。
 
 
 
 
+
+* 示例：
+
+```c
+#include <stdio.h>
+
+/**
+ * 声明学生的结构体
+ */
+struct Student {
+    int  id;          // 学号
+    char name[20];    // 姓名
+    char gender;      // 性别
+    int  age;         // 年龄
+    char address[50]; // 地址
+};
+
+int main() {
+
+    // 禁用 stdout 缓冲区
+    setbuf(stdout, nullptr);
+
+    // 定义结构体数组变量并赋值
+    struct Student stuArr[5] = {
+        {.id = 1000, .name = "张三", .age = 18, .gender = 'M', .address = "北京"},
+        {.id = 1001, .name = "李四", .age = 19, .gender = 'M', .address = "上海"},
+        {.id = 1002, .name = "王五", .age = 20, .gender = 'F', .address = "天津"},
+        {.id = 1003, .name = "赵六", .age = 21, .gender = 'F', .address = "石家庄"},
+        {.id = 1004, .name = "田七", .age = 22, .gender = 'F', .address = "河南"},
+    };
+
+    // 计算数组的长度
+    int len = sizeof(stuArr) / sizeof(stuArr[0]);
+
+    // 遍历结构体数组中的成员
+    for (int i = 0; i < len; i++) {
+        printf("学号：%d\n", stuArr[i].id);
+        printf("姓名：%s\n", stuArr[i].name);
+        printf("性别：%c\n", stuArr[i].gender);
+        printf("年龄：%d\n", stuArr[i].age);
+        printf("地址：%s\n", stuArr[i].address);
+        printf("\n");
+    }
+
+    return 0;
+}
+```
+
+
+
+* 示例：
+
+```c
+#include <stdio.h>
+
+/**
+ * 声明学生的结构体
+ */
+struct Student {
+    int  id;          // 学号
+    char name[20];    // 姓名
+    char gender;      // 性别
+    int  age;         // 年龄
+    char address[50]; // 地址
+};
+
+int main() {
+
+    // 禁用 stdout 缓冲区
+    setbuf(stdout, nullptr);
+
+    // 定义结构体数组变量并赋值
+    struct Student stuArr[5] = {
+        {.id = 1000, .name = "张三", .age = 18, .gender = 'M', .address = "北京"},
+        {.id = 1001, .name = "李四", .age = 19, .gender = 'M', .address = "上海"},
+        {.id = 1002, .name = "王五", .age = 20, .gender = 'F', .address = "天津"},
+        {.id = 1003, .name = "赵六", .age = 21, .gender = 'F', .address = "石家庄"},
+        {.id = 1004, .name = "田七", .age = 22, .gender = 'F', .address = "河南"},
+    };
+
+    // 计算数组的长度
+    int len = sizeof(stuArr) / sizeof(stuArr[0]);
+
+    // 遍历结构体数组中的成员
+    struct Student *p = stuArr;
+    for (int i = 0; i < len; i++) {
+        printf("学号：%d\n", p[i].id);
+        printf("姓名：%s\n", p[i].name);
+        printf("性别：%c\n", p[i].gender);
+        printf("年龄：%d\n", p[i].age);
+        printf("地址：%s\n", p[i].address);
+        printf("\n");
+    }
+
+    return 0;
+}
+```
+
+
+
+* 示例：
+
+```c
+#include <stdio.h>
+
+/**
+ * 声明学生的结构体
+ */
+struct Student {
+    int  id;          // 学号
+    char name[20];    // 姓名
+    char gender;      // 性别
+    int  age;         // 年龄
+    char address[50]; // 地址
+};
+
+int main() {
+
+    // 禁用 stdout 缓冲区
+    setbuf(stdout, nullptr);
+
+    // 定义结构体数组变量并赋值
+    struct Student stuArr[5] = {
+        {.id = 1000, .name = "张三", .age = 18, .gender = 'M', .address = "北京"},
+        {.id = 1001, .name = "李四", .age = 19, .gender = 'M', .address = "上海"},
+        {.id = 1002, .name = "王五", .age = 20, .gender = 'F', .address = "天津"},
+        {.id = 1003, .name = "赵六", .age = 21, .gender = 'F', .address = "石家庄"},
+        {.id = 1004, .name = "田七", .age = 22, .gender = 'F', .address = "河南"},
+    };
+
+    // 计算数组的长度
+    int len = sizeof(stuArr) / sizeof(stuArr[0]);
+
+    // 遍历结构体数组中的成员
+    struct Student *p = stuArr;
+    for (int i = 0; i < len; i++, p++) {
+        printf("学号：%d\n", p->id);
+        printf("姓名：%s\n", p->name);
+        printf("性别：%c\n", p->gender);
+        printf("年龄：%d\n", p->age);
+        printf("地址：%s\n", p->address);
+        printf("\n");
+    }
+
+    return 0;
+}
+```
+
 ## 2.8 结构体在数据结构中的应用