求教啊，operator<<的操作符重载
#include<iostream>
using namespace std;
class MyString{
public:
MyString(char*s){
str=new char[strlen(s)+1];
strcpy(str,s);
}
~MyString(){
delete[]str;
}
ostream&operator<<(ostream&os,MyString&string){
str=new char[strlen(string.str)+1];
strcpy(str,string.str);
return os<<str<<endl;
}
private:
char*str;
};
int main(){
MyString a("hello");
cout<<a<<endl;
return 0;
}


操作符重载出错啊，求指教啊

[解决办法]

C/C++ code

#include<iostream> using namespace std; class MyString{ public:  MyString(char*s){  str=new char[strlen(s)+1];  strcpy(str,s);  }  ~MyString(){  delete[]str;  }//注意 friendfriend ostream&operator<<(ostream&os,MyString&string){  str=new char[strlen(string.str)+1];  strcpy(str,string.str);  return os<<str<<endl; } private:  char*str; };  int main(){  MyString a("hello");  cout<<a<<endl;  return 0;}
[解决办法]
 重载>>和<<只能设为非成员函数！！
C/C++ code
#include<iostream> using namespace std; class MyString{ public:  MyString(char*s){  str=new char[strlen(s)+1];  strcpy(str,s);  }  ~MyString(){  delete[]str;  }//注意 friendfriend ostream&operator<<(ostream&os,MyString&string)； private:  char*str; };  ostream&operator<<(ostream&os,MyString&string){  str=new char[strlen(string.str)+1];  strcpy(str,string.str);  return os<<str<<endl; }  int main(){  MyString a("hello");  cout<<a<<endl;  return 0;}