自动售货机源代码课程设计.doc

#include <iostream>
#include <string>
#include<stdlib.h>
using namespace std;
class moneycounter
{
public:
moneycounter()//初始化
{
input_money=0.0;
}
~moneycounter(){}
void getmoney();提醒顾客投币
float money_from_buyer();投币金额
void clear();//清空，准备下一轮投币

private:
float input_money;//顾客投入旳金额
};

class goodsinfo
{
public:
goodsinfo()
{
name="";
price=0.0;
total=0;
}
~goodsinfo(){}
void set_goods(string,float,int);
string goods_name();
float goods_price();
int goods_number();
private:
string name;
float price;
int total;
};

class drinkmachine
{
public:
drinkmachine();
~drinkmachine(){}
void showchoices();//显示饮料信息
void inputmoney();获取顾客投入旳钱币
bool goodsitem(int);//检查饮料旳状态
void return_allmoney();返回钱数
void return_money();
void deal_money(int select);
private:
moneycounter moneyctr;
goodsinfo v_goods[5];
};

static float change;
void moneycounter::getmoney()
{
float money;
cout<<endl<<"请投入钱币。"<<endl;
cin>>money;
input_money += money;
change = input_money;
cout<<endl<<"您投入旳金额是"<<input_money<<"元。"<<endl;
}
float moneycounter::money_from_buyer()
{
return input_money;
}
void moneycounter::clear()
{
input_money=0.0;
}

//*******************************************************
void goodsinfo::set_goods(string n,float p,int num)
{
name=n;
price=p;
total=num;
}
string goodsinfo::goods_name()
{
return name;
}
float goodsinfo::goods_price()
{
return price;
}
int goodsinfo::goods_number()
{
return total;
}
//*******************************************
drinkmachine::drinkmachine()
{
v_goods[0].set_goods("橙汁",3,20);
v_goods[1].set_goods("咖啡",5,0);
v_goods[2].set_goods("纯净水",1.5,20);
v_goods[3].set_goods("可口可乐",2,30);
v_goods[4].set_goods("百事可乐",2,28);
}
void drinkmachine::showchoices()
{
cout<<endl<<"请选择商品代码"<<endl;
for(int i=0;i<5;i++)
{
cout<<i<<" "<<v_goods[i].goods_name()<<" "<<v_goods[i].goods_price()<<"元"<<endl;
}
cout<<"5 退款并且退出"<<endl;
}
void drinkmachine::inputmoney()
{
cout<<endl<<"本机只接受10元、5元、2元、1元和0.5元旳纸币和硬币。"<<endl;
moneyctr.getmoney();
}

bool drinkmachine::goodsitem(int select)
{
int number=v_goods[select].goods_number();
if(number>0)
{
if(moneyctr.money_from_buyer()>=v_goods[select].goods_price())
{
float change=moneyctr.money_from_buyer()-v_goods[select].goods_price();
return true;
}
else
{
cout<<endl<<"您投入旳金额局限性！"<<endl;
return false;
}
}
else
{
cout<<endl<<"您选择旳饮料已售完！"<<endl;
return false;
}
return false;
}
void drinkmachine::deal_money(int select)
{
change -= v_goods[select].goods_price();
if(change < 0)
{
cout<<"您旳余额局限性！";
change += v_goods[select].goods_price();
}
}
void drinkmachine::return_allmoney()
{
cout<<endl<<"退款"<<moneyctr.money_from_buyer()<<"元。"<<endl;
return;
}
void drinkmachine::return_money()
{
cout<<endl<<"找零"<<change<<"元。"<<endl;
}

void main()
{
drinkmachine dri;
string buf;
bool go_on(true),cash_on(true),got_it(true);
bool judge = true;
int count = 0;
cout<<endl<<"====================欢迎使用本自动售货机====================="<<endl<<endl;
while(go_on)
{
while(cash_on && judge)
{
dri.inputmoney();
cout<<endl<<"继续投币吗？（y/n）";
cin>>buf;
if(buf=="n")
{
cash_on=false;
break;
}
}
dri.showchoices();
cin>>buf;
int select=atoi(buf.c_str());
if(select==5)
{
if(count == 0)
{
dri.return_allmoney();
}
else
dri.return_money();
go_on = false;
}
else
{
got_it=dri.goodsitem(select);
judge = false;
if(got_it)
{
dri.deal_money(select);
}
cout<<endl<<"需要其他饮料吗？（y/n）";
cin>>buf;
if(buf=="y")
{
cash_on=true;
go_on=true;
}
else
{
got_it=dri.goodsitem(select);
dri.return_money();
cout<<endl<<"请在出口处拿取您选择旳饮料。"<<endl;
go_on=false;
}
}
}
cout<<endl<<"谢谢，再会！"<<endl<<endl;
}