购物车小程序

 1 #/usr/bin/env python
 2 # -*- coding:utf-8 -*-
 3 # Author:ylw
 4 
 5 goods_i = [
 6     [‘电脑‘, 6500],
 7     [‘鼠标‘, 1200],
 8     [‘游艇‘, 99],
 9     [‘美女‘, 998],
10     [‘Bike‘, 999],
11 ]
12 shopping_cart = []
13 
14 salary = int (input("输入你的工资："))
15 
16 while True:
17     for index, i in enumerate(goods_i):
18         print("%s.\t%s\t%s" % (index, i[0], i[1]))
19 
20     choice = input(">>>:").strip()
21     if len(choice) == 0:
22         print(‘输入有误，请重新输入！‘)
23         continue
24     if choice.isdigit():
25         choice = int(choice)
26         if choice < len(goods_i) and choice >=0:
27             goods_item = goods_i[choice] #获取商品
28             if salary >= goods_item[1]: #买的起
29                 salary -= goods_item[1] #扣钱
30                 shopping_cart.append(goods_item)
31                 print("以购买商品%s，您的余额还剩：%s" %(goods_item[0], salary))
32                 print("商品购买完成输入exit退出")
33 
34             else:
35                 print("对不起您的余额不足，还需", goods_item[1] - salary)
36         else:
37             print("没有此商品，请重新输入！")
38     elif choice == "exit":
39         total_cost = 0
40         print("您购买了以下产品：")
41         for i in shopping_cart:
42             print(i)
43             total_cost += i[1]
44 
45         print("商品总价格：",total_cost)
46         print("您当前的余额为：",salary)
47         print("欢迎下次光临！拜拜再见，古德拜！")
48         break