[問題] 設定運算子"="多載的改寫

[supercygnus (......)]

#include <iostream>
#include <cstdlib>
using namespace std;
class CWin
{
   private:
     char id, *title;

   public:
     CWin(char i='D', char *text="Default window"):id(i)
     {
        title=new char[50];
        strcpy(title,text);
     }
     void set_data(char i, char *text)
     {
        id=i;
        strcpy(title,text);
     }
     void operator=(const CWin &win)
     {
        id=win.id;
        strcpy(this->title,win.title);
     }
     void show(void)
     {
        cout << "Window " << id << ": " << title << endl;
     }

     ~CWin(){ delete [] title; }

     CWin(const CWin &win)
     {
        id=win.id;
        strcpy(title,win.title);
     }
};

int main(void)
{
   CWin win1('A',"Main window");
   CWin win2;

   win1.show();
   win2.show();

   win1=win2;
   cout << endl << "after win1=win2" << endl;
   win1.show();
   win2.show();

   win1.set_data('B',"Hello window");
   cout << endl << "更改win1之後" << endl;
   win1.show();
   win2.show();

   system("pause");
   return 0;
}

(1)將operator=()函數改成以友誼函數來撰寫
(2)將operator=()函數改成一般的函數來撰寫

請問這兩個要怎麼寫呢@@  寫了好久還是想不出來= = compile過不了= =

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→ firejox:友誼 ->google friend c++
→ firejox:一般 把object丟到public
→ supercygnus:定義我都知道,但是就是寫不出來= =
→ james732:就我所知opeartor=只能寫member function
→ firejox:你的operator型態...
推 tiwei:void 改成CWin