Bird.h
#pragma once
#include<iostream>
using namespace std;
class Bird
{
public:
Bird();
~Bird();
virtual void Eat();
};
Bird.cpp
#include "stdafx.h"
#include "Bird.h"
Bird::Bird()
{
}
Bird::~Bird()
{
}
//吃方法
void Bird::Eat()
{
cout << "我是一只鸟,我喜欢吃虫子" << endl;
}
#pragma once
#include "Bird.h"
class Magpie:public Bird
{
public:
Magpie();
~Magpie();
void Eat();
};
Magpie.cpp
#include "stdafx.h"
#include "Magpie.h"
Magpie::Magpie()
{
}
Magpie::~Magpie()
{
}
void Magpie::Eat()
{
cout << "我是一只喜鹊,我喜欢吃虫子" << endl;
}
#pragma once
#include "Bird.h"
class Eagle:public Bird
{
public:
Eagle();
~Eagle();
void Eat();
};
Eagle.cpp
#include "stdafx.h"
#include "Eagle.h"
Eagle::Eagle()
{
}
Eagle::~Eagle()
{
}
void Eagle::Eat()
{
cout << "我是一只老鹰,我喜欢吃肉" << endl;
}
Main文件:
#include "stdafx.h"
#include "Bird.h"
#include "Magpie.h"
#include "Eagle.h"
#include <iostream>
using namespace std;
int main()
{
Bird *b;
Bird bd;
b = &bd;
b->Eat();
Magpie m;
b = &m;
b->Eat();
Eagle e;
b = &e;
b->Eat();
int i = 0;
cin >> i;
return 0;
}
运行结果: