c语言函数中多维数组的传递（以多维数组作为参数）

1、非函数形式

#include <stdio.h>

int main(void)
{
    int a[4][3] = {{54,63,14},{65,85,78},{85,74,69},{25,65,78}};
    int b[4][3] = {{25,65,74},{85,74,96},{25,87,69},{64,58,87}};
    int c[4][3];
    int i, j;
    
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 3; j++)
        {
            c[i][j] = a[i][j] + b[i][j];
        }
    }
    putchar('\n');
    puts("first examination.");
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 3; j++)
        {
            printf("%4d", a[i][j]);
        }
        putchar('\n');
    }
    putchar('\n');
    puts("second examination.");
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 3; j++)
        {
            printf("%4d", b[i][j]);
        }
        putchar('\n');
    }
    putchar('\n');
    puts("examination sum.");
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 3; j++)
        {
            printf("%4d", c[i][j]);
        }
        putchar('\n');
    }
    return 0;
}

2、函数形式

#include <stdio.h>

void func1(const int x[4][3], const int y[4][3], int z[4][3])
{
    int i, j;
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j< 3; j++)
        {
            z[i][j] = x[i][j] + y[i][j];
        }
    }
}

void func2(const int x[4][3])
{
    int i, j;
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 3; j++)
        {
            printf("%4d", x[i][j]);
        }
        putchar('\n');
    }
}

int main(void)
{
    int i, j;
    int a[4][3] = {{85,45,69},{36,45,87},{45,69,34},{54,78,96}};
    int b[4][3] = {{58,46,24},{78,36,59},{21,46,97},{58,79,63}};
    int c[4][3];
    
    func1(a, b, c);
    
    putchar('\n');
    puts("first examination.");
    func2(a);
    
    putchar('\n');
    puts("second examination.");
    func2(b);
    
    putchar('\n');
    puts("examination sum.");
    func2(c);
    
    return 0;
}