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  1. #include <iostream>
  2. #include <string.h>
  3.  
  4. using namespace std;
  5.  
  6. class Cwin
  7. {
  8.     private:
  9.         char id,*title;
  10.     public:
  11.         Cwin(char i='D',char *text="default windows")
  12.         {
  13.             id=i;
  14.             cout<<"件構元被呼叫....."<<endl;
  15.             title=new char[strlen(text)+1];
  16.             strcpy(title,text);
  17.         }
  18.         Cwin(const Cwin &win) //拷貝運算元
  19.         {
  20.             cout<<"拷貝建構元被呼叫...."<<endl;
  21.             id=win.id;
  22.             title=win.title;
  23.             strcpy(title,win.title);
  24.         }
  25.         ~Cwin()
  26.         {
  27.             delete [] title;
  28.         }
  29.         void show()
  30.         {
  31.             cout<<"Windows= "<<id<<" : "<< title <<endl;
  32.         }
  33. };
  34. int main()
  35. {
  36.     Cwin *ptr1=new Cwin('A',"主要的視窗");
  37.     Cwin *ptr2=new Cwin(*ptr1);
  38.  
  39.     ptr1->show();
  40.     ptr2->show();
  41.  
  42.     delete ptr1;
  43.     cout<<"刪除prt1之後..."<<endl;
  44.  
  45.     ptr2->show();
  46.     delete ptr2;
  47.     return 0;
  48. }
  49.  
Runtime error #stdin #stdout 0.01s 3884KB
comments (?)
stdin 
Standard input is empty
stdout 
件構元被呼叫.....
拷貝建構元被呼叫....
Windows= A : 主要的視窗
Windows= A : 主要的視窗
刪除prt1之後...
Windows= A :
https://ideone.com/W1v8D
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
public

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