種子論壇 | 高雄市資訊培育協會學員討論區

#include<iostream>
#include<cstdlib>
using namespace std;
int main()
{
re2:
int p,q,sum=0,option,pay,money;
string name[7]={"遙控汽車","飛機模型","足球 ",
"拼圖 ","玩具槍 ","可愛玩偶","籃球 "};
int price[7]={450,550,325,200,660,150,380};
int qty[7]={0,0,0,0,0,0,0};
cout<<"☆★☆智能玩具店☆★☆"<<endl<<endl;
cout<<"[商品價目表]"<<endl;
for(int i=0; i<7; i++)
{
cout<<"("<<i+1<<")"<<name[i]<<"\t"<<price[i]<<"元"<<endl;
}
cout<<"(8)結帳"<<endl<<endl;
re:
cout<<"請輸入商品代碼: ";
cin>>p;
if(p==8)
goto checkout;
else if(p>=1 && p<=7)
{
cout<<"數量: ";
cin>>q;
if(q<=0)
{
cout<<"輸入錯誤!"<<endl;
goto re;
}
sum+=price[p-1]*q;
qty[p-1]+=q;
}
else
{
cout<<"輸入錯誤!"<<endl;
}
goto re;
checkout:
cout<<endl<<"[購物清單]"<<endl;
cout<<"-----------------------------"<<endl;
for(int i=0; i<7; i++)
{
if(qty[i]!=0)
cout<<name[i]<<"\t"<<price[i]<<"元 * "<<qty[i]<<"個"<<endl;
}
cout<<"-----------------------------"<<endl;
cout<<"總共"<<sum<<"元!"<<endl<<endl;
cout<<"1-正確無誤 2-重新選購 ";
cin>>option;
if(option==1)
{
goto change;
}
else
{
system("cls"); //清畫面
goto re2;
}
change:
cout<<endl<<"請付帳: ";
cin>>pay;
money=pay-sum;
if(money==0)
{
cout<<"錢剛好!"<<endl;
}
else if(money<0)
{
cout<<"錢不夠!還差"<<-money<<"元!"<<endl;
goto change;
}else
{
cout<<"找您"<<money<<"元!"<<endl;
if(money>=1000)
{
cout<<"一千元鈔票"<<money/1000<<"張"<<endl;
money%=1000;
}
if(money>=500)
{
cout<<"五百元鈔票"<<money/500<<"張"<<endl;
money%=500;
}
if(money>=100)
{
cout<<"一百元鈔票"<<money/100<<"張"<<endl;
money%=100;
}
if(money>=50)
{
cout<<"五十元硬幣"<<money/50<<"枚"<<endl;
money%=50;
}
if(money>=10)
{
cout<<"十元硬幣"<<money/10<<"枚"<<endl;
money%=10;
}
if(money>=5)
{
cout<<"五元硬幣"<<money/5<<"枚"<<endl;
money%=5;
}
if(money>0)
{
cout<<"一元硬幣"<<money<<"枚"<<endl;
}
}
cout<<endl<<"銘謝惠顧!"<<endl;
system("pause");
return 0;
}

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