c++ 委托构造函数

#include<iostream>
int n=0;
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=10;
 Cbox a(10) ;
 
 //Cbox b(a);//跟   Cbox b=a；   结果一样 
 
 
 

 
 
 }