#include<stdio.h>
main()
{
float x,amax,amin;
scanf("%f",&x);
amax=x;amin=x;
while(x>=0)
{
if(x>amax)amax=x;
if(x<amin)amin=x;
scanf("%f",&x);
}
printf("\namax=%f\namin=%f\n",amax,amin);
}原文地址:http://blog.csdn.net/u013116579/article/details/38128901