#include<stdio.h>
main()
{
int n,k;
float score,sum,ave;
for(n=1;n<3;n++)
{ sum=0.0;
for(k=1;k<=4;k++)
{scanf("%f",&score);
sum+=score;
}
ave=sum/4.0;
printf("NO%d:%f\n",n,ave);
}
}原文地址：http://blog.csdn.net/u013116579/article/details/38129231
