习题3-17

#include <stdio.h>int main(){int a[10];int i;float b;int c;c=1;while(c<=2){printf("第%d轮循环\n",c);printf("请输入十个数字\n");for(i=0;i<10;i++){     scanf("%d",&a[i]);}for(i=0;i<1;i++){b=a[i];}for(i=1;i<10;i++){b=b+a[i];}printf("平均值为:%f\n",b/10);c=c+1;}return 0;}