python 3.5 购物小程序

 1 #!/usr/bin/env python
 2 #encoding: utf-8
 3 import time
 4 import os
 5 
 6 nowtime = time.strftime('%Y-%m-%d %H:%M:%S')
 7 shopping_total_money = 0
 8 shopping_car = {}
 9 
10 
11 def touch_shopping_log():
12     with open('shopping_log.txt', 'w') as shopping_log:
13         pass
14 
15 def shopping_log_add(log):
16     with open('shopping_log.txt', 'a') as shopping_log:
17         shopping_log.write('%s : %s : %s
' % (nowtime,name,log))
18 
19 shopping_list = [
20     ["phone",100],
21     ["computer",200],
22     ["car",1000],
23     ["home",10000],
24 ]
25 def welcome_info():
26 
27     print ('_________________________________')
28     print ('welcome to shopping 北京购物广场')
29     print ('now time is : %s' % (nowtime))
30     print ('_________________________________')
31 
32 
33 def shopping_list_info():
34     for index,info in enumerate(shopping_list,0):
35         print ('%s | name: %s | money: %s' % (index,info[0],info[1]))
36 
37 
38 def shopping_start():
39     while True:
40         shop_num = int(input('please input number [88:quit]:'))
41         if shop_num == 88:
42             break
43         shopping_car[shopping_list[shop_num][0]] = shopping_list[shop_num][1]
44 
45 def shopping_stop():
46     global  shopping_total_money
47     print ('.............shopping list open...........')
48     for k,v in shopping_car.items():
49         print ('name: %s money: %s' % (k,v))
50         shopping_total_money += v
51     print('............shopping list end.......')
52     print ('total cost   [%s]    yuan' % (shopping_total_money))
53 
54 def shopping_close():
55     global shopping_total_money
56     make_sure = input('make sure [y|n]')
57     if make_sure == 'y':
58         print ('thank you come on')
59         for k, v in shopping_car.items():
60             log_info = 'name: %s money: %s' % (k, v)
61             shopping_log_add(log_info)
62         shopping_total_money = 0
63         shopping_car.clear()
64 
65     elif make_sure == 'n':
66         print ('your no make sure')
67         print ('clear shopping car .....')
68         shopping_total_money = 0
69         shopping_car.clear()
70 
71 def shopping_run():
72     global  name
73     welcome_info()
74     shopping_list_info()
75     print ('________________________________')
76     name = input('inout your name:')
77     shopping_start()
78     shopping_stop()
79     shopping_close()
80 
81 if __name__ == "__main__":
82     while True:
83         shopping_run()
84         time.sleep(2)
85         os.system('cls')

记录日志信息：

1 2016-10-30 09:21:40 : beijing : name: car money: 1000
2 2016-10-30 09:21:40 : beijing : name: computer money: 200
3 2016-10-30 09:21:40 : beijing : name: home money: 10000
4 2016-10-30 09:21:40 : shanghai : name: phone money: 100
5 2016-10-30 09:21:40 : shanghai : name: car money: 1000
6 2016-10-30 09:21:40 : shanghai : name: computer money: 200