如何在C中实现struct的二维数组

struct Element {
    int value1;
    int value2;
};

int rows = 3;
int cols = 4;

// 分配内存空间
struct Element** array = (struct Element**)malloc(rows * sizeof(struct Element*));
for (int i = 0; i < rows; i++) {
    array[i] = (struct Element*)malloc(cols * sizeof(struct Element));
}

#include <stdio.h>
#include <stdlib.h>

struct Element {
    int value1;
    int value2;
};

int main() {
    int rows = 3;
    int cols = 4;

    // 分配内存空间
    struct Element** array = (struct Element**)malloc(rows * sizeof(struct Element*));
    for (int i = 0; i < rows; i++) {
        array[i] = (struct Element*)malloc(cols * sizeof(struct Element));
    }

    // 初始化数组
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            array[i][j].value1 = i + j;
            array[i][j].value2 = i - j;
        }
    }

    // 打印数组
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            printf("(%d, %d) ", array[i][j].value1, array[i][j].value2);
        }
        printf("\n");
    }

    // 释放内存空间
    for (int i = 0; i < rows; i++) {
        free(array[i]);
    }
    free(array);

    return 0;
}