C语言IF...ELSE的问题
#include<stdio.h>
void main()
{
int a,i;
unsigned sum=1;
printf("Please input your number ,such as 10!\n");
scanf("%d!",&a);
if (a>=0) for(i=1;i<=a;i++)
sum=i*sum;
printf("%d!=%u",a,sum);
else printf("Sorry ! your data is error !"); */她说我的else位置错了/*
}