product.h

c++程序

//Product.h

#ifndef _PRODUCT_H_
#define _PRODUCT_H_

class Product
{
public:
	virtual ~Product()=0;
protected:
	Product();
private:
};

class ConcreteProduct:public Product
{
public:
	~ConcreteProduct();
	 ConcreteProduct();
protected:
private:

};

#endif