python之shopping通过购物单号来完成 

 1 product_list  = [
 2                     ("Iphone",5800),
 3                     ("Mac pro",9900),
 4                     ("watch",3300),
 5                     ("book",100),
 6                     ("coffee",10),
 7 ]
 8 
 9 shopping_list = []
10 salary = input("input your salary:")
11 if salary.isdigit():
12     salary = int(salary)
13     while True:
14         for index,item in enumerate(product_list):
15             #print(product_list.index(item).item)
16             print(index,item)
17         user_choice = input("which your want to buy:")
18         if user_choice.isdigit():
19             user_choice = int(user_choice)
20             if user_choice < len(product_list) and len(product_list)>= 0:
21                 p_item = product_list[user_choice]
22                 if p_item[1] <= salary: #买得起
23                     shopping_list.append(p_item)
24                     salary -= p_item[1]
25                     print("Added %s into your shopping cart , your current balance is :\033[31;1m%s\033[0m"%(p_item,salary))
26                 else:
27                     print("\033[32;1m your balance just only %s :\033[0m"%(salary))
28             else:
29                 print("\033[31;1mproduct code [%s] is not exist\033[0m"%(user_choice))
30         elif user_choice =="q":
31              print("-----------product_list-----------")
32              for p in shopping_list:
33                  print(p)
34                  print("your current balance:",salary)
35              exit()
36         else:
37             print("invalid option")

 

posted on 2018-01-30 23:03  杨学友  阅读(139)  评论(0)    收藏  举报

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