10_27.cpp

C程序参考,简单易懂,是初学者不可少的参考资料

#include<stdio.h>
void main()
{ float sum=0.0,x,*px=&x,*psum;
  int n=0;
  psum=&sum;
  scanf("%f",px);
  while(*px>0)
   {  *psum=*psum+*px;
       n=n+1;
       scanf("%f",px);
   }
   printf("aver is %f",*psum/n);
 }