np.cpp

酒吧管理系统！！有简单基本功能

//Np.cpp
#include<iostream.h>
#include"Counter.h"
#include"Np.h"

Np::Np(int t,double d):Counter(t)
{
 getdailydiscount(d);
}

void Np::getdailydiscount(double d)
{
 dailydiscount=d;
}

void Np::print()const
{
 Counter::print();
 cout<<"Today's discount:"<<dailydiscount;
}