namespace ConsoleInherit
{class Program{static void Main(string[] args){int x = CFish.s;CFish pFish = new CFish();CAnimal pA = pFish;pA.eat();pA.yeep();Console.WriteLine();}}
}namespace ConsoleInherit
{public class CAnimal{CAnimal Ca;public  CAnimal(){Ca = this;Ca.yeep();//和C++ 不一样，这个this直接调用子类的虚函数Ca.eat();this.eat();}public void eat(){Ca.yeep();Console.Write("Animal eat!");}public virtual void yeep(){Console.Write("Animal yepp!");}}
}namespace ConsoleInherit
{class CFish:CAnimal{public new void eat(){Console.Write("fish eat!");}public static int s;static void Get(){CFish pFish = new CFish();}public void swim(){Console.Write("fish swim!");}public override void yeep(){Console.Write("Fish yeep!");}}
}

#pragma once
class CAnimal
{public:CAnimal *Ca;CAnimal(void);~CAnimal(void);void eat();void breathe();virtual void yeep();};using namespace std;CAnimal::CAnimal(void)
{Ca=this;Ca->yeep();//为什么是父类的？,难道是因为子类还没有实例化完？和C#中不一样}CAnimal::~CAnimal(void)
{
}
void CAnimal::eat()
{   Ca->yeep();//这里调用的是子类的cout<<"Animal eat"<<endl;
}
void CAnimal::breathe()
{cout<<"Animal breathe"<<endl;
}
void CAnimal::yeep()
{cout<<"Animal yeep"<<endl;
}#pragma once
#include "animal.h"
class CFish:public CAnimal{public:CFish();~CFish();void swim();void breathe();virtual void yeep();};using namespace std;CFish::CFish(void)
{//调用Ca=this;
}CFish::~CFish(void)
{
}
void CFish:: swim()
{cout<<"Fish swim"<<endl;}
void CFish::breathe()
{cout<<" Fish breathe"<<endl;}
void CFish::yeep()
{cout<<" Fish yeep"<<endl;
}CFish cFish;cFish.eat();//继承父类的方法cFish.swim();//cFish.breathe();CAnimal *Canimal;CAnimal pAx=(CAnimal)cFish;pAx.eat();Canimal=&cFish;//Canimal->breathe();//重载是由指针类型决定，虚函数是由具体的对象决定//Canimal->yep();Canimal->Ca->yeep();Canimal->Ca->breathe();//调用子类的虚函数cout<<""<<endl;