难道是不能直接判断cin是否到结尾，应该输入Ctrl+z 再按回车，这样才能退出？

Question

string tmp;while(1)
{
cin >> tmp;if(tmp[0] == '\0')break;cout << "输出字符：" << tmp << endl;}

我使用了 cin.eof() 和 cin.good() 都不可以，在win7平台下，mingw编译 我刚刚开始学习C++，希望高人帮帮忙

Answer 1

#include <iostream>#include <string>using namespace std;int main(){&nbsp; &nbsp; &nbsp; &nbsp; string tmp = "";&nbsp; &nbsp; &nbsp; &nbsp; while(cin >> tmp){&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; cout << "输出字符：" << tmp << endl;&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; return 0;}

Answer 2

while( cin >> tmp ) cout << tmp << endl ;