陳妍蓁

1. #include<iostream>
   
2. #include<cstdlib>
   
3. using namespace std;
   
4. int main(){
   
5. re:
   
6.     system("cls");
   
7.     int x,y,sum=0;
   
8.     string n[]={"遙控汽車","飛機模型","足球    ","拼圖    ","玩具槍  ","可愛玩偶","籃球    "};
   
9.     int price[]={450,550,325,200,660,150,380};
   
10.     int qty[]={0,0,0,0,0,0,0};
    
11.     cout<<"****智能玩具店****"<<endl<<endl;
    
12.     cout<<"[商品價目表]"<<endl;
    
13.     for(int i=0;i<7;i++)
    
14.         cout<<"("<<i+1<<")"<<n[i]<<"\t"<<price[i]<<"元"<<endl;
    
15.         cout<<"(8)結帳"<<endl<<endl;
    
16.         cout<<"[優惠方案] 滿五千享9折優惠"<<endl<<endl;
    
17. re2:
    
18.     cout<<"請輸入商品代碼:";
    
19.     cin>>x;
    
20.     if (x==8)
    
21.         goto checkout;
    
22.     if(x>=1 && x<=7)
    
23.     {
    
24.     cout<<"請輸入商品數量:";
    
25.     cin>>y;
    
26.     sum=sum+price[x-1]*y;
    
27.     qty[x-1]+=y;
    
28.     goto re2;
    
29.     }
    
30.     else
    
31.         goto re;
    
32. checkout:
    
33.     cout<<endl<<"[購物清單]"<<endl;
    
34.     cout<<"----------------------------------------------"<<endl;
    
35.     for(int i=0;i<=7;i++){
    
36.         if(qty[i]!=0)
    
37.     cout<<n[i]<<"\t"<<price[i]<<"*"<<qty[i]<<"個"<<endl;
    
38.     }
    
39.     cout<<"----------------------------------------------"<<endl;
    
40.     cout<<"總共"<<sum<<"元!"<<endl;
    
41.     if(sum>=5000)
    
42. cout<<"由於消費滿五千,享九折優惠"<<endl<<"您只需要付"<<sum*0.9<<"元,現省"<<sum*0.1<<"元"<<endl;
    
43. 
    
44. system("pause");
    
45. goto re;
    
46. return 0;
    
47. }

複製代碼