酒吧管理系统！！有简单基本功能

				//Gold.h
				#ifndef GOLD_H
				#define GOLD_H
				
				class Gold:public Vip
				{
				 public:
				    Gold(int,long,double);
					~Gold(){};
				    void upgrade(double);
					virtual double counting(double);
				    virtual void print() const;
				 private:
					 double gdiscount;
					 double finalexpense,actualityexpense;
				};
				
				#endif