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;
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 count[]={0,0,0,0,0,0,0}; //計算東西買了幾個
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; //計算價錢
//把東西放入購物車
count[p-1]=count[p-1]+q;
goto re2;
}else
{
goto re;
}
checkout:
cout<<"[購物清單]"<<endl;
cout<<"-----------------------------"<<endl;
for(int i=0;i<=6;i++){
if(count[i]==0){
continue;
}
cout<<name[i]<<"\t"<<price[i]<<"元"<<"*"<<count[i]<<"個"<<endl;
}
cout<<"-----------------------------"<<endl;
cout<<endl<<"總共"<<sum<<"元!"<<endl;
cout<<"1.確定結帳\t2.重新選購(清空購物車)\t3.繼續選購" <<endl;
int option;
cin>>option;
if(option==1){
//確定結帳
//執行智慧找零系統
goto smart;
}
else if(option==2){
//重新選購(清空購物車)
goto re;
}
else if(option==3){
//繼續選購
goto re2;
}
else{
//輸入錯誤
cout<<"輸入錯誤"<<endl;
goto checkout;
}
smart:
// cout<<"請輸入商品價格: ";
// cin>>price;
//sum商品總價
cout<<"請付錢: ";
int pay;
cin>>pay;
if(pay<0)
goto smart;
int money=pay-sum;
if(money==0)
{
cout<<endl<<"剛剛好！銘謝惠顧！"<<endl;
}else if(money<0)
{
cout<<endl<<"錢不夠喔！還差"<<-money<<"元！"<<endl;
goto smart;
}else if(money>=1000)
{
cout<<endl<<"錢太多？全部送我吧！"<<endl;
}else
{
cout<<endl<<"需找客人"<<money<<"元"<<endl<<endl;
if(money>=500)
{
cout<<"五百元鈔票"<<money/500<<"張"<<endl;
money%=500; //money=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;
}
system("pause");
goto re;
return 0;
}

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