python小程序之购物系统

python小程序之购物系统
 1 # -*- coding: utf-8 -*-
 2 import time
 3 goods = [
 4     {"name":"computer","price":1999},
 5     {"name":"mouse","price":19},
 6     {"name":"Yacht","price":199},
 7     {"name":"human","price":999},
 8 ]
 9 shop = []
10 money = 0
11 while True:
12     print "1充值，2添加商品，3移除商品，4查看购物车，5查看余额，6结账
"
13     inp = input('请选择您需要的操作：')
14     num = int(inp)
15     if num == 1:
16         inp = input("请输入充值钱数：")
17         money = money + int(inp)
18         print "当前余额：",money
19         time.sleep(1)
20     elif num == 2:
21         for key, item in enumerate(goods,1):
22             print key,item
23         inp = input("请输入购买商品序号：")
24         num = int(inp)
25         shop.append(goods[num - 1])
26         print "您添加的商品为：",goods[num - 1]
27         time.sleep(1)
28     elif num  == 3:
29         for key, item in enumerate(shop,1):
30             print key,item
31         inp = input("请输入你要移除的商品序号：")
32         num = int(inp)
33         shop.remove(shop[num -1])
34     elif num == 4:
35         print shop
36     elif num == 5:
37         print money
38     else:
39         inp = 0
40         sum = 0
41         while inp < len(shop):
42             sum = sum + shop[inp]['price']
43             inp += 1
44         if money < sum:
45             print "余额不足请充值！"
46         else:
47             print"结账成功！"
48             break
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