03-python3.5-模拟购物车流程--更新追加细节注释功能

 1 #!/usr/bin/env python
 2 #-*- coding: utf-8 -*-
 3 #__author__ = "XZ"
 4 
 5 product_list = [
 6     (‘Iphone‘,5800),
 7     (‘Mac Pro‘,8900),
 8     (‘Watch‘,12000),
 9     (‘Book‘,120),
10     (‘Bike‘,800),
11     (‘Coffee‘,31),
12 ]
13 
14 
15 shopping_list = []
16 salary = input("Input your salary: >>>")
17 print(product_list[0][0],type(product_list[0][0]))
18 print(product_list[0][1],type(product_list[0][1]))
19 if salary.isdigit():
20     salary = int(salary)
21     while True:
22         for index,item in enumerate(product_list):
23             print(index,item)
24         user_choice = input("请输入您需要购买商品的商品编号: >>>")
25         if user_choice.isdigit():
26             user_choice = int(user_choice)
27             if user_choice < len(product_list) and user_choice >= 0:
28                 p_item = product_list[user_choice]
29                 if p_item[1] <= salary:
30                     salary -= p_item[1]
31                     shopping_list.append(p_item)
32                     print("Add %s into your shopping cart , your current balance is \033[31;1m%s\033[0m" %(p_item,salary))
33                 else:
34                     print("\033[41;1m您的余额还剩%s啦，还买个毛线呢！\033[0m")
35             else:
36                 print("\033[41;1m您输入的商品编号不存在请输入正确的商品编号！\033[0m")
37         elif user_choice == ‘q‘:
38             print("---------Shopping Cart List--------")
39             for p in shopping_list:
40                 print(p)
41             print("your currrent balance is %s" %(salary))
42             exit()
43         else:
44             print("\033[41;1mInvalid Optiong,请输入十进制格式的商品编号！\033[0m")