e1.cpp

能理解C++中运算符重载的需要性

#include<iostream.h>          

class Bed
{
public:
	void Sleep()
	{
		cout<<"Sleep..."<<endl;
	}
};
class Sofa
{
public:
	void WatchTV()
	{
		cout<<"Watching TV"<<endl;
	}
};
class SleepSofa:public Bed,public Sofa
{
public:
	void FoldOut()
	{
		cout<<"Fold out the sofa."<<endl;
	}
};
void main()
{
	SleepSofa ss;
	ss.WatchTV();
	ss.FoldOut();
	ss.Sleep();
}