Python习题__购物车

功能要求：

要求用户输入总资产，例如：2000
显示商品列表，让用户根据序号选择商品，加入购物车
购买，如果商品总额大于总资产，提示账户余额不足，否则，购买成功。

附加：可充值、某商品移除购物

goods = [
    {"name": "电脑", "price": 1999},
    {"name": "鼠标", "price": 10},
    {"name": "游艇", "price": 20},
    {"name": "美女", "price": 998},
]

 1 goods = [
 2 {"name": "电脑", "price": 1999},
 3 {"name": "鼠标", "price": 10},
 4 {"name": "游艇", "price": 20},
 5 {"name": "美女", "price": 998},
 6 ]
 7 shopping_cart = []
 8 your_asset = int(input('请输入你的总资产: '))
 9 for my_goods in enumerate(goods):
10     index = my_goods[0]#选择商品的序号
11     shopping_list = my_goods[1]#表示选择商品的清单
12     shopping_name = shopping_list['name']#表示选择的商品的名字
13     shopping_price = shopping_list['price']
14     print(shopping_list,(index,shopping_name,shopping_price))
15 while True:
16     your_choose = input('请输入你想要购买商品的序号: ').strip()
17     if  your_choose.isdigit():
18         your_choose = int(your_choose)
19     else:
20         print('输入错误，请重新输入')
21         continue
22     if your_choose < len(goods) and your_choose >= 0:
23         my_index = goods[your_choose]
24         my_shopping_name = my_index['name']
25         my_shopping_price = my_index['price']
26     else:
27         print('输入错误，请重新输入')
28         continue
29     if int(my_shopping_price) < int(your_asset):
30         shopping_cart.append(my_shopping_name)
31         print(shopping_cart)
32         your_asset = your_asset - my_shopping_price
33         print('你的剩余的金额为%s'%(your_asset))
34         go_buy = input('是否想继续购买？？>>请回答yes或者no： ')
35         if go_buy == 'yes':
36             print('请继续买你心仪的商品吧！')
37         else:
38             for i in shopping_cart:
39                 print('你购买的商品是：%s'%(i))
40             break
41     else:
42         print('你的余额不足！！')
43         shopping_cart.append(my_shopping_name)
44         ans = input('是否要继续充值>>请回答yes或者no： ')
45         if ans == 'yes'.strip():
46             recharge = input('请输入你所要充值的金额').strip()
47             recharge = int(recharge)
48             your_asset = your_asset + recharge
49             print('您充值后的金额为%s'%(your_asset))
50         elif ans == 'no'.strip():
51             print('余额不足')
52             remove_shopping_cart = input('是否要将商品移除购物车>>请回答yes或者no: ')
53             if remove_shopping_cart == 'yes':
54                 remove_shopping = input('请输入要移除的商品序号: ').strip()
55                 shopping_cart.remove(goods[int(remove_shopping)]['name'])
56                 print('您的购物列表如下: ')
57                 for j in shopping_cart:
58                     print(j)
59                 break
60             elif ans == 'no':
61                 print('购买失败')
62                 break

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