这是输0结束 ，该怎么改
#include "stdafx.h"
#include <iostream>
using namespace std;
int main()
{
double ave,sum=0;
int count=0,score;
cout<<"输入成绩"<<endl;
cin>>score;
while(score!=0)
{
count++;
sum+=score;
cin>>score;
}
ave=sum/count;
cout<<"和"<<sum<<'\t'<<"平均"<<ave<<endl;
return 0;
