1 #include<iostream>
 2 int n=0;
 3 using namespace std;
 4  class Cbox{
 5          int a ;
 6          int b ;
 7          int c ;
 8      public:
 9          int g ;
10      Cbox(int d):Cbox(){cout<<"dddd"<<endl;}
11     Cbox(){cout<<"dddd1"<<endl;};
12     ~Cbox(){cout<<a<<"
 
 "<<b<<" "<<c<<endl;}
13  };
14  
15  
16  
17  int main(){
18  int aa=10;
19  Cbox a(10) ;
20  
21  //Cbox b(a);//跟   Cbox b=a；   結果一樣 
22  
23  
24  

25  
26  
27  }

c++ 委托構造函數