描述

實現C++類Base和Derived，並編寫相關構造函數和析構函數，使其能夠輸出樣例信息。

主函數裏的代碼已經給出，請補充完整，提交時請勿包含已經給出的代碼。

int main()
{
	Base *p = new Derived(1, 2);
	delete p;
	Base b;
	Derived d;
	return 0;
}

輸入

無

輸出

輸出樣例信息。

樣例輸入

無

樣例輸出

Base Constructor 1
Derived Constructor 2
Derived Destructor 2
Base Destructor 1
Base Constructor 0
Base Constructor 0

#include<iostream>
using namespace std;
class Base{
    public:
        int x;
        Base(int a=0):x(a)
        {
            x=a;
            cout<<"Base Constructor "<<x<<endl;
        }
        virtual
 
~Base(){cout<<"Base Destructor "<<x<<endl;}
}; 
class Derived:public Base{
    public:
        int y;
        Derived(int a=0,int b=0):Base(a),y(b)
        {
            cout<<"Derived Constructor "<<y<<endl;
        }
        ~Derived()
        {
            cout<<"
 
Derived Destructor "<<y<<endl;
        }
};
int main()
{
    Base *p = new Derived(1, 2);
    delete p;
    Base b;
    Derived d;
    return 0;
}

【TOJ 5254】C++實驗：繼承中的構造函數和析構函數