C - 通过交换指针交换两个二维数组

交换二维数组元素：通过C语言使用指针进行巧妙操作

c
#include 
// 定义数组交换函数
void swapArrays(int (*arr1)[3], int (*arr2)[3]) {
    int (*temp)[3] = arr1;
    arr1 = arr2;
    arr2 = temp;
}
int main() {
    int arr1[3][3] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
    int arr2[3][3] = {{10, 11, 12}, {13, 14, 15}, {16, 17, 18}};
    printf("交换前的数组arr1：%
");
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            printf("%d ", arr1[i][j]);
        }
        printf("%
");
    }
    printf("%
交换前的数组arr2：%
");
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            printf("%d ", arr2[i][j]);
        }
        printf("%
");
    }
    // 调用数组交换函数
    swapArrays(arr1, arr2);
    printf("%
交换后的数组arr1：%
");
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            printf("%d ", arr1[i][j]);
        }
        printf("%
");
    }
    printf("%
交换后的数组arr2：%
");
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            printf("%d ", arr2[i][j]);
        }
        printf("%
");
    }
    return 0;
}