程序代码：

int main(void) {
    void print_a(int* pa, int m, int n);
    int a[2][3] = {1, 2, 3, 4, 5, 6};
    print_a(a[0], 2, 3);
}

void print_a(int* pa, int m, int n) {
    for (int i = 0; i < m; i++) {
        for (int j = 0; j < n; j++) {
            printf("%d, ", pa[i*n + j]);
        }
        printf("\n");
    }
}