e7.cpp

一、教学目的： 能理解C++中运算符重载的需要性

#include<iostream.h>          

class Animal
{
public:
	Animal(){}
	void eat(){cout<<"eat "<<endl;}
};
class Giraffe:private Animal//私有继承
{
public:
	Giraffe(){}
	void strechNeck(double){cout<<"strechneck "<<endl;}
};
class Cat:public Animal//公共继承
{
public:
	Cat(){}
	void Meaw(){cout<<"meaw "<<endl;}
};

void main()
{
	Cat dao;
	Giraffe gir;
	dao.eat();
//	gir.eat();//不可访问
}