Day2 - Python基础2作业【购物车程序】 

 1 #/usr/bin/env python
 2 #-*- coding:utf-8 -*-
 3 # Day2/shopping_cart.py
 4 
 5 _author_ = 'hepidong'
 6 
 7 # 程序：购物车程序
 8 # 
 9 # 需求:
10 # 
11 # 启动程序后，让用户输入工资，然后打印商品列表
12 # 允许用户根据商品编号购买商品
13 # 用户选择商品后，检测余额是否够，够就直接扣款，不够就提醒 
14 # 可随时退出，退出时，打印已购买商品和余额
15 
16 
17 salay = int(input('请输入您的工资：'))
18 
19 ShoppingCart = []
20 while True:
21     List = [['iPhone', 5000], ['HuaWei', 3000], ['XiaoMi', 2000], ['oppo', 1000]]
22     for i in List:
23         num = List.index(i)
24         print (num + 1,'-', i)
25 
26     your_num = input("请选择商品编号（q退出）：")
27     if your_num.isdigit():
28         your_num = int(your_num)
29         if your_num <= len(List):
30             if List[your_num - 1][1] <= salay:
31                 salay = salay - List[your_num - 1][1]
32                 ShoppingCart.append(List[your_num -1])
33                 print ('购买成功！')
34             elif List[your_num - 1][1] > salay:
35                 print ('您的余额已不足购买本商品！请重新选择或退出（q）')
36             else:
37                 print ('输入错误，请重新输入！')
38                 continue
39     elif your_num == 'q':
40         print ('本次您购买了', ShoppingCart)
41         print ('购物结束，您的余额为%d元。' % salay)
42         exit()
43     else:
44         print ('输入错误，请重新输入！')
45         continue

 

posted @ 2017-12-14 16:39  东锅先生丶  阅读(169)  评论(0)    收藏  举报