析构函数和构造函数的调用过程

pig.cpp

#include <iostream>

using namespace std;

struct Pig
{
	Pig()
	{
		call();
	}

	~Pig()
	{
		call();
	}

	virtual void call(void)
	{
		cout<<"Pig\n";
	}
};

struct SmallPig:public Pig
{
	virtual void call(void)
	{
		cout<<"Small Pig\n";
	}
};

int main(int argc,char* argv[])
{
	Pig* p=new SmallPig;
	p->call();
	delete p;
	getchar();
}