#include <iostream>
#include <stdafx>
#include <string>
usint namespace std;
int main(){
string strinfo="Please input your name:";
cout<<strinfo ;
cin>>strinfo;
return 0;
}

为什么结果编译出了问题:fatal error C1010: unexpected end of file while looking for precompiled header directive
执行 cl.exe 时出错.
希望高手指点,谢谢!

那就介绍一下std::string用法
string来代替char * 数组，
1、Define
string s1 = "hello";
string s2 = "world";
string s3 = s1 + "," + s2 +"!\n";
2、append
s1 += ",shanshan\n";
3、Compare
if(s1 == s2)
.....
else if(s1 == "hello")
.....
4、 string 重载了许多操作符，包括 +, +=, <, =, , [], <<, >>等，正式这些操作符，对字符串操作非常方便
#include <string>
#include <iostream>
using namespace std;
int main(){
string strinfo="Please input your name:";
cout << strinfo ;
cin >> strinfo;
if( strinfo == "winter" )
cout << "you are winter!"<<endl;
else if( strinfo != "wende" )
cout << "you are not wende!"<<endl;
else if( strinfo < "winter")
cout << "your name should be ahead of winter"<<endl;
else
cout << "your name should be after of winter"<<endl;
strinfo += " , Welcome to China!";
cout << strinfo<<endl;
cout <<"Your name is :"<<endl;
string strtmp = "How are you? " + strinfo;
for(int i = 0 ; i < strtmp.size(); i ++)
cout<<strtmp[i];
return 0;
}

不过这些都是以前的版本了！
现在不常用了,在读以前的源代码时会碰到!