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()
{
re:
system("cls");
int p,q,sum=0,o,pay;
string name[]={"遙控汽車","飛機模型","足球 ","拼圖 ","玩具槍 ","可愛玩偶","籃球 "};
int price[]={450,550,325,200,660,150,380};
int qty[]={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;
re2:
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;
sum+=price[p-1]*q;
qty[p-1]+=q;
goto re2;
}else
{
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>>o;
if(o==1)
{
re3:
cout<<"請付帳:";
cin>>pay;
if(pay<sum)
{
cout<<"您付的錢不夠,還差"<<-(pay-sum)<<"元"<<endl<<endl;
goto re3;
}
else if(pay==sum)
{
cout<<"剛剛好!無需找錢"<<endl<<endl;
}
else
{
int m=pay-sum;
cout<<"找你"<<m<<"元!"<<endl;
/*
m=686
*/
if(m>=500)
{
cout<<"五百元鈔票"<<m/500<<"張"<<endl;
//686/500=1....186
m=m%500;
}
if(m>=100)
{
cout<<"一百元鈔票"<<m/100<<"張"<<endl;
//686/500=1....186
m=m%100;
}
if(m>=50)
{
cout<<"五十元硬幣"<<m/50<<"枚"<<endl;
//686/500=1....186
m=m%50;
}
if(m>=10)
{
cout<<"十元硬幣"<<m/10<<"枚"<<endl;
//686/500=1....186
m=m%10;
}
if(m>=5)
{
cout<<"五元硬幣"<<m/5<<"枚"<<endl;
//686/500=1....186
m=m%5;
}
if(m>=1)
{
cout<<"一元硬幣"<<m<<"枚"<<endl;
}
}
}
else if(o==2)
goto re;
else
cout<<"輸入錯誤!"<<endl;
system("pause");
goto re;
return 0;
}

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