diff --git a/codes/c/chapter_array_and_linkedlist/array.c b/codes/c/chapter_array_and_linkedlist/array.c
new file mode 100644
index 000000000..300124a70
--- /dev/null
+++ b/codes/c/chapter_array_and_linkedlist/array.c
@@ -0,0 +1,112 @@
+/*
+ * File: array.c
+ * Created Time: 2022-12-20
+ * Author: MolDuM (moldum@163.com)
+ */
+
+#include "../include/include.h"
+
+/* 随机返回一个数组元素 */
+int randomAccess(int* nums, int size) {
+    // 在区间 [0, size) 中随机抽取一个数字
+    int randomIndex = rand() % size;
+    // 获取并返回随机元素
+    int randomNum = nums[randomIndex];
+    return randomNum;
+}
+
+/* 扩展数组长度 */
+int* extend(int* nums, int size, int enlarge) {
+    // 初始化一个扩展长度后的数组
+    int* res = (int *)malloc(sizeof(int) * (size + enlarge));
+    // 将原数组中的所有元素复制到新数组
+    for (int i = 0; i < size; i++) {
+        res[i] = nums[i];
+    }
+    // 初始化扩展后的空间
+    for (int i = size; i < size + enlarge; i++) {
+        res[i] = 0;
+    }
+    // 返回扩展后的新数组
+    return res;
+}
+
+/* 在数组的索引 index 处插入元素 num */
+void insert(int* nums, int size, int num, int index) {
+    // 把索引 index 以及之后的所有元素向后移动一位
+    for (int i = size - 1; i > index; i--) {
+        nums[i] = nums[i - 1];
+    }
+    // 将 num 赋给 index 处元素
+    nums[index] = num;
+}
+
+/* 删除索引 index 处元素 */
+void removeItem(int* nums, int size, int index) {
+    // 把索引 index 之后的所有元素向前移动一位
+    for (int i = index; i < size - 1; i++) {
+        nums[i] = nums[i + 1];
+    }
+}
+
+/* 遍历数组 */
+void traverse(int* nums, int size) {
+    int count = 0;
+    // 通过索引遍历数组
+    for (int i = 0; i < size; i++) {
+        count++;
+    }
+}
+
+/* 在数组中查找指定元素 */
+int find(int* nums, int size, int target) {
+    for (int i = 0; i < size; i++) {
+        if (nums[i] == target)
+            return i;
+    }
+    return -1;
+}
+
+
+/* Driver Code */
+int main() {
+    /* 初始化数组 */
+    int size = 5;
+    int arr[5];
+    printf("数组 arr = ");
+    printArray(arr, size);
+
+    int nums[5] = { 1, 3, 2, 5, 4 };
+    printf("数组 nums = ");
+    printArray(nums, size);
+    
+    /* 随机访问 */
+    int randomNum = randomAccess(nums, size);
+    printf("在 nums 中获取随机元素 %d", randomNum);
+    
+    /* 长度扩展 */
+    int enlarge = 3;
+    int* res = extend(nums, size, enlarge);
+    size += enlarge;
+    printf("将数组长度扩展至 8 ，得到 nums = ");
+    printArray(res, size);
+    
+    /* 插入元素 */
+    insert(res, size, 6, 3);
+    printf("在索引 3 处插入数字 6 ，得到 nums = ");
+    printArray(res, size);
+
+    /* 删除元素 */
+    removeItem(res, size, 2);
+    printf("删除索引 2 处的元素，得到 nums = ");
+    printArray(res, size);
+    
+    /* 遍历数组 */
+    traverse(res, size);
+    
+    /* 查找元素 */
+    int index = find(res, size, 3);
+    printf("在 res 中查找元素 3 ，得到索引 = %d\n", index);
+
+    return 0;
+}
diff --git a/codes/c/include/PrintUtil.h b/codes/c/include/PrintUtil.h
new file mode 100644
index 000000000..e471f0388
--- /dev/null
+++ b/codes/c/include/PrintUtil.h
@@ -0,0 +1,30 @@
+/*
+ * File: PrintUtil.h
+ * Created Time: 2022-12-21
+ * Author: MolDum (moldum@163.com)
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+// #include "ListNode.h"
+// #include "TreeNode.h"
+
+/**
+ * @brief Print an Array
+ * 
+ * @param arr 
+ * @param n 
+ */
+
+static void printArray(int* arr, int n)
+{
+    printf("[");
+    for (int i = 0; i < n - 1; i++) {
+        printf("%d, ", arr[i]);
+    }
+    printf("%d]\n", arr[n-1]);
+}
+
+
diff --git a/codes/c/include/include.h b/codes/c/include/include.h
index 44843254e..02858b677 100644
--- a/codes/c/include/include.h
+++ b/codes/c/include/include.h
@@ -1,2 +1,12 @@
-#include <stdio.h>
-#include <stdbool.h>
\ No newline at end of file
+/*
+ * File: include.h
+ * Created Time: 2022-12-20
+ * Author: MolDuM (moldum@163.com)
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+
+#include "PrintUtil.h"