#include<iostream>
#include<cstring>
int main()
{
    using namespace std;
    cout<<"Enter a word:";
    string word;
    cin>>word;
    char temp;
    int i,j;
    for(j=0,i=word.size()-1;j<i;--i,++j)
    {
        temp=word[i];
        word[i]=word[j];
        word[j]=temp;
    }
    cout<<word<<"\nDone\n";
    return 0;
}

E:\Program Files\Microsoft Visual Studio\MyProjects\1111\111.cpp(8) : error C2679: binary '>>' : no operator defined which takes a right-hand operand of type 'class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >' (
or there is no acceptable conversion)
E:\Program Files\Microsoft Visual Studio\MyProjects\1111\111.cpp(17) : error C2679: binary '<<' : no operator defined which takes a right-hand operand of type 'class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >'
(or there is no acceptable conversion)

这已经很明显了，string 类里面没有重载"<<",">>"操作符，你用的是VC6.0吗，查查MSDN就可以看到string 类的详细内容了。

恩 我用的6.0  MSDN怎么查啊...请指教,,,,

#include<iostream>
#include<string>
using namespace std;

int main()
{
    string word;
    cout<<"Enter a word:";
    cin>>word;
    char temp;
    int i,j;
    for(j=0,i=word.size()-1;j<i;--i,++j)
    {
        temp=word[i];
        word[i]=word[j];
        word[j]=temp;
    }
    cout<<word<<"\nDone\n"<<endl;
    return 0;
}


至多一个C，注意格式，养成习惯

把#include<cstring> 改成:
#include<string>

OK!

还有就是最好
#include<iostream>
#include<string>
using namespace std;
int main()
{
    //using namespace std;
    cout<<"Enter a word:";
    string word;
    cin>>word;
    char temp;
    int i,j;
    for(j=0,i=word.size()-1; j<i; --i,++j)
    {
        temp=word[i];
        word[i]=word[j];
        word[j]=temp;
    }
    cout<<word<<"\nDone\n";
    return 0;
}
这样写

收到的鲜花

• momo1212825 于 2008-04-24 21:35 送鲜花  1朵   附言：谢谢哦

谢谢咯

<cstring>
定义的一些字符串的函数，比如strcpy(),strlen()等等。
<string>
定义了string类