Question

我正在尝试创建一个程序，通过调用一个名为sum的函数来查找单个二维数组的总和。但是我遇到了一个错误的错误{但我不确定这是怎么回事？

#include <stdio.h>

int sum(int s[3][4])
int main(int argc, char *argv[])
{
int s[3][4], c, r, sum = 0;

for (r = 0; r <= 2; r++)
{
    for (c = 0; c <= 3; c++)
    {
        printf("Enter value for s[%d][%d]: ", r, c);
        scanf("%d", &s[r][c]);
    }
}
printf("The sum is: %d\n", sum(s[3][4]);
return 0;
}

int sum (int s[3][4])
{
for (r = 0; r <= 2; r++)
{
    for (c = 0; c <= 3; c++)
    {
        sum = s[r][c] + sum;
    }
}
}

Answer 1

您在这里错过了;：

int sum(int s[3][4])

Answer 2

首先，您不能将sum用作函数名，因为它是预定义的函数。而且你的代码有一些小的语法错误。这是一些固定的代码。

#include <stdio.h>

int sumx(int s[3][4]);

int main(void)
{
    int c, r, sum = 0;
    int s[3][4];  //declared inside the main
    for (r = 0; r <= 2; r++)
    {
        for (c = 0; c <= 3; c++)
        {
            printf("Enter value for s[%d][%d]: ", r, c);
            scanf("%d", &s[r][c]);
        }
    }
    printf("The sum is: %d\n", sumx(s));  //pass to the function because now it is not global;
    return 0;
}

int sumx(int s[3][4])
{
    int sum = 0;  //sum is initialized to zero otherwise it will take garbage value
    for (int r = 0; r <= 2; r++)
    {
        for (int c = 0; c <= 3; c++)
        {
            sum = s[r][c] + sum;
        }
    }
    return sum;
}

调用函数的二维数组的和

2 个答案: