python 购物车

 1 #_author_: edison
 2 #date: 2017/8/8
 3 salary = int(input('please input your salary:'))
 4 flag = True
 5 a = [1,2,3,4,5]
 6 b = ['iphone7','mac pro','coffee','bicycle','shoes']
 7 c = [5600,10988,32,988,699]
 8 product = []
 9 for i in range(5):
10     print(a[i],b[i],c[i])
11 while flag:
12     number = int(input('输入你想购买商品的号数:'))  # 转化成整形
13     for i in range(5):
14         if a[i] == number:
15             price_spread = salary-c[i]
16             if price_spread >= 0:
17                 print(b[i],'也加入你的购物车'+'当前余额：',price_spread)
18                 product.append(i)
19                 sentence = input('go on or quit?')
20                 if sentence == 'quit':
21                     flag = False
22                     print('你购买了以下产品：')
23                     cost_money = 0
24                     for i in product:
25                         print('商品：',b[i],'价格：',c[i])
26                         cost_money = cost_money + c[i]
27                     print('你本次消费：',cost_money)
28                 else:
29                     salary = price_spread
30             else:
31                 print('余额不足:')
32 # for i in product:
33 #     cost_money = 0
34 #     cost_money = cost_money + c[i]
35 # print('你本次消费：',cost_money)
36 print('你的余额为：',price_spread,'欢迎下次光临！')