源程序：

#include <iostream>

using namespace std;

class Point

{

private:

　　int x,y;

public:

　　Point(int=0,int=0);

~Point(); 

};

Point::Point(int a,int b):x(a),y(b)

{

　　cout<<"Initializing"<<a<<","<<b<<endl;

}

Point::~Point()   //定义析构函数

{

　　cout<<"Destructor is active"<<endl;

}

void main()

{

　　Point *ptr=new Point[2];

　　delete []ptr;

}