Python问题求助--如何将循环程序中每次输入的数据循环使用，即退出当前循环程序后，再次运行该循环程序时可以使用原先输入的数据信息？

Posted 2020-11-23 人在江湖~

 1 card_list = []
 2 
 3 
 4 def main_desk():
 5     print(\'*\'*50)
 6     print(\'欢迎使用【名片管理系统】V1.0\')
 7     print(\'1.新建名片\')
 8     print(\'2.显示全部\')
 9     print(\'3.查询名片\')
10     print(\'0.退出系统\')
11     print(\'*\'*50)
12 
13 
14 def new_card():
15     print(\'新建名片\')
16     print(\'=\'*50)
17     name_str = input(\'姓名：\')
18     age_str = input(\'年龄：\')
19     phone_str = input(\'电话：\')
20     card_dict = {\'name\': name_str, \'age\': age_str, \'phone\': phone_str}
21     card_list.append(card_dict)
22     print(card_dict)
23     print(f\'添加{name_str}名片成功\')
24 
25 
26 def show_all():
27     print(\'显示全部名片\')
28     print(\'=\' * 50)
29     if len(card_list) == 0:
30         print(\'名片为空，请先新建名片\')
31         return
32     print(\'姓名\\t\\t年龄\\t\\t电话\')
33     for card_dict in card_list:
34         print(f\'{card_dict["name"]}\\t\\t{card_dict["age"]}\\t\\t{card_dict["phone"]}\')
35 
36 
37 def search_card():
38     print(\'查询名片\')
39     find_name = input(\'请输入查找的姓名：\')
40     for card_dict in card_list:
41         if card_dict[\'name\'] == find_name:
42             print(\'=\'*50)
43             print(\'姓名\\t\\t年龄\\t\\t电话\')
44             print(f\'{card_dict["name"]}\\t\\t{card_dict["age"]}\\t\\t{card_dict["phone"]}\')
45             deal_card(card_dict)
46             break
47     else:
48         print(\'名片不存在，请重新输入\')
49 
50 
51 def deal_card(find_dict):
52     action = input(\'请输入操作：【1】修改【2】删除【0】返回菜单:\')
53     if action == \'1\':
54         find_dict[\'name\'] = work(find_dict[\'name\'], \'姓名：\')
55         find_dict[\'age\'] = work(find_dict[\'age\'], \'年龄：\')
56         find_dict[\'phone\'] = work(find_dict[\'phone\'], \'电话：\')
57         print(\'修改名片成功\')
58     elif action == \'2\':
59         card_list.remove(find_dict)
60         print(\'删除成功\')
61 
62 
63 def work(dict_value, message):
64     result_str = input(message)
65     if len(result_str) > 0:
66         return result_str
67     else:
68         return dict_value
69 
70 
71 while True:
72     main_desk()
73     action_str = input(\'请输入您的操作：\')
74     print(f\'您的操作是【{action_str}】\')
75     if action_str == \'1\':
76         new_card()
77     elif action_str == \'2\':
78         show_all()
79     elif action_str == \'3\':
80         search_card()
81         pass
82     elif action_str == \'0\':
83         print(\'欢迎您再次使用【名片管理系统】\')
84         break
85     else:
86         print(\'您的输入有误，请重新输入操作\')