#include<stdio.h>
int biggest(int a,int b,int c)
{
int big=a;
if(big<b)
big=b;
if(big<c)
big=c;
return big;
}
void main()
{
int a,b,c,big;
printf("enter a,b,c:\n");
scanf("%d%d%d",&a,&b,&c); /*如果这样写%d,%d,%d那么输入的时候也要输入逗号*/
big=biggest(a,b,c);
printf("the biggest number is:%d",big);
getche();
}