编辑代码

#include <stdio.h>
int main () {
    int sum=0,count=0,num;
    printf("请输入数字:");
    scanf("%d",&num); 
    while(num!=0)
    {
    sum+=num;
    count++;
    scanf("%d",&num); 
    }
    printf("平均数为:%f",1.0*sum/count);
    return 0;
}