c++ 委托构造函数

 #include<iostream>
 int n=;
 using namespace std;
  class Cbox{
          int a ;
          int b ;
          int c ;
      public:
          int g ;
      Cbox(int d):Cbox(){cout<<"dddd"<<endl;}
     Cbox(){cout<<"dddd1"<<endl;};
     ~Cbox(){cout<<a<<" "<<b<<" "<<c<<endl;}
  };

  int main(){
  int aa=;
  Cbox a() ;

  //Cbox b(a);//跟   Cbox b=a；   结果一样 

  }