小弟我写的友元，如何访问不了私有成员那？

我写的友元，怎么访问不了私有成员那？？
#include<iostream>
#include<string>

using namespace std;

class WordCount{
friend ostream&
operator<<(ostream&,const WordCount&);

public:
WordCount(string word,int cnt=1){};

private:
string word;
int occurs;
};
ostream& 
operator<<(ostream& os,const WordCount& wd)
{
os<<"<"<<wd.occurs<<">"<<wd.word;
return os;
}

void main()
{
WordCount wd("sadness",12);
cout<<"wd: \n"<<wd<<endl;
}

错误信息：
--------------------Configuration: asdf - Win32 Debug--------------------
Compiling...
a.cpp
D:\b\asdf\a.cpp(20) : error C2248: 'occurs' : cannot access private member declared in class 'WordCount'
  D:\b\asdf\a.cpp(15) : see declaration of 'occurs'
D:\b\asdf\a.cpp(20) : error C2248: 'word' : cannot access private member declared in class 'WordCount'
  D:\b\asdf\a.cpp(14) : see declaration of 'word'
D:\b\asdf\a.cpp(27) : error C2593: 'operator <<' is ambiguous
执行 cl.exe 时出错.

a.obj - 1 error(s), 0 warning(s)

[解决办法]
时不时啊，编译没错 vc6

C/C++ code

 
 #include  <iostream>  
 #include  <string>  
  
 using   namespace   std;  
  
 class   WordCount{  
 friend   ostream&  
 operator  < <(ostream&,const   WordCount&);  
  
 public:  
 WordCount(string   word,int cnt=1){};  
  
 private:  
 string   word;  
 int   occurs;  
 };  
 ostream&    
 operator  < <(ostream&   os,const   WordCount&   wd)  
 {  
 os  < < "  < "  < <wd.occurs  < < "> "  < <wd.word;  
 return   os;  
 }  
  
 void   main()  
 {  
 WordCount   wd( "sadness ",12);  
 cout  < < "wd:   \n "  < <wd  < <endl;  
 }  
  
 

C/C++ code

class   WordCount{         friend   ostream&         operator <<(ostream&os,const   WordCount&wd)    {         os << " < " <<wd.occurs << "> " <<wd.word;         return   os;     } public:     WordCount(string   word,int cnt=1){};     private:     string   word;     int   occurs; };
[解决办法]
编译是没有错误的，只是你这构造函数相当于没有写。
[解决办法]
WordCount(string   word,int   cnt=1){
     this->word = word;
     this->occurs=cnt;
};  

楼上正确
[解决办法]
真的用
C/C++ code
using std::cout; using std::ostream;using std::endl;using std::string;