- #include<iostream>
- #include<cstdlib>
- using namespace std;
- int main()
- {
- string name[]={"空氣","石油","行星","水","陽光","黃金","泥土"};
- int qty[]={0,0,0,0,0,0,0};
- int price[]={450,550,1000,200,660,150,380};
- int p,q,sum=0,g,pay,money,chose;
- cout<<"☆★☆21世紀ㄟ店☆★☆"<<endl<<endl;
- cout<<"[商品價目表]"<<endl;
- cout<<"(1)空氣\t450元"<<endl;
- cout<<"(2)石油\t550元"<<endl;
- cout<<"(3)行星\t1000元"<<endl;
- cout<<"(4)水\t200元"<<endl;
- cout<<"(5)陽光\t660元"<<endl;
- cout<<"(6)黃金\t10000元"<<endl;
- cout<<"(7)泥土\t380元"<<endl;
- cout<<"(8)結帳"<<endl<<endl;
- start:
- 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)
- {
- sum=sum+price[p-1]*q;
- qty[p-1]=q;
- goto start;
- }else
- {
- cout<<"輸入錯誤!"<<endl;
- goto start;
- }
- }else
- {
- cout<<"輸入錯誤!"<<endl;
- goto start;
- }
- checkout:
- cout<<endl<<"[購物清單]"<<endl;
- cout<<"------------------"<<endl;
- for(int i=0; i<=6; i++)
- {
- if(qty[i]!=0)
- cout<<name[i]<<"\t"<<price[i]<<"元*"<<qty[i]<<"個"<<endl;
- }
- cout<<endl<<"總共"<<sum<<"元!"<<endl;
- cout<<"------------------"<<endl;
- back:
- cout<<"(1)繼續(2)重新選購"<<endl;
- cin>>chose;
- if(chose==1)
- {
- goto go;
- }else if(chose==2)
- {
- goto start;
- }else
- {
- cout<<"輸入錯誤";
- goto back;
- }
- go:
- cout<<"請輸入付了多少錢: ";
- cin>>pay;
- money=pay-sum;
- if(money==0)
- {
- cout<<"錢剛剛好! 請慢走!"<<endl;
- }
- if(money<0)
- {
- cout<<"錢不夠! 還欠"<<-money<<endl;
- }
- if(money>0)
- {
- cout<<"總共需要找客人"<<money<<"元"<<endl;
- if(money>=500)
- {
- cout<<"500元鈔票"<<money/500<<"張"<<endl;
- money=money%500;
- }
- if(money>=100)
- {
- cout<<"100元鈔票"<<money/100<<"張"<<endl;
- money=money%100;
- }
- if(money>=50)
- {
- cout<<"50元硬幣"<<money/50<<"枚"<<endl;
- money=money%50;
- }
- if(money>=10)
- {
- cout<<"10元硬幣"<<money/10<<"枚"<<endl;
- money=money%10;
- }
- if(money>=5)
- {
- cout<<"5元硬幣"<<money/5<<"枚"<<endl;
- money=money%5;
- }
- if(money>=1)
- {
- cout<<"1元硬幣"<<money/1<<"枚"<<endl;
- money=money%1;
- }
- }
- system("pause");
- return 0;
- }
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