如果 y==0 如何让 C 接受

Question

#include <stdio.h>

int main() {
    int x,y,add,subtraction,multiplication,division;
   printf("Write x:");
    scanf("%d",&x);
   printf("Write y:");
    scanf("%d",&y);
    add = x+y;
    printf("Add=%d\n",add);
    subtraction = x-y;
    printf("subtraction = %d\n",subtraction);
    multiplication = x*y;
    printf("multiplication = %d\n",multiplication);
    division = x/y;
    if  (y == 0)
        printf("Operation not permitted");
    else
        printf("division = %d\n",division);
    return 0;
}

所以 当我打印 y=0 时什么也没有发生 无“不允许操作”或除法的回答 我该怎么办？

Answer 1

在 else 中进行除法。像这样：

#include <stdio.h>

int main() 
{
    int x,y,sum,roz,iloczyn,iloraz;
   printf("Wprowadz x:");
    scanf("%d",&x);
   printf("Wprowadz y:");
    scanf("%d",&y);
    sum = x+y;
    printf("Suma=%d\n",sum);
    roz = x-y;
    printf("roznica = %d\n",roz);
    iloczyn = x*y;
    printf("iloczyn = %d\n",iloczyn);
    
    if  (y == 0)
    {
        printf("Operation not permitted");
        exit(0);
    }
    else
    {
        iloraz = x/y;
        printf("iloraz = %d\n",iloraz);
        return 0;
    }
}

Answer 2

只需放置此语句

division = x/y;

在 if 语句中，如

if  (y == 0)
{
    printf("Operation not permitted");
}
else
{
    division = x/y;
    printf("division = %d\n",division);
}

return 0;