这段代码中除法怎么算不出来?
#include <stdio.h>void main()
{
int i, j, sum;
scanf("%d,%d", &i, &j);
sum = i+j;
printf("%d+%d=%d \n", i, j, sum);
sum = i-j;
printf("%d-%d=%d \n", i, j, sum);
sum = i*j;
printf("%d*%d=%d \n", i, j, sum);
sum = i/j;
printf("%d/%d=%d \n", i, j, sum);
}