1 #!/usr/bin/env python
 2 # -*- coding:utf-8 -*-
 3 #Author:SKING
 4 """
 5 題目：
 6 輸入賬號，密碼
 7 1.輸入三次後提示休息5s
 8 2.密碼重復輸入三次後鎖定賬戶
 9 """
10 
11 import string, sys, time
12 
13 def wait_5s():
14     print(‘You input too many times,please wait 5s...‘)
15     for a in range(5, 1, -1):
16         print(f‘{a}s
 
‘)
17         time.sleep(1)
18 
19 count = 0 #記錄用戶輸入的次數
20 count_pwd = 3 #記錄用戶輸入密碼的次數
21 
22 while count<3:
23     count +=1
24     username = input(‘username:‘)
25     if username == ‘‘:
26         print(‘用戶名不能為空！請重新輸入！‘)
27         if count == 3:
28             wait_5s()
29             count = 0
30
 
         continue
31 
32     with open(‘locked_user.txt‘, ‘r‘, encoding=‘utf-8‘) as file_locked_user:
33         for i in file_locked_user:
34             i = i.strip()
35             if username == i:
36                 print(f‘{username} is locked!‘)
37                 chose_key = input(‘Press "Q" to exit!Press any key to continue:
 
‘)
38                 if chose_key == ‘Q‘ or chose_key == ‘q‘:
39                     sys.exit(0)
40     with open(‘user_password.txt‘, ‘r‘, encoding=‘utf-8‘) as file_user_password:
41         for j in file_user_password:
42             (file_username, file_password) = j.strip().split(‘\t‘)
43             if username == file_username:
44                 while count_pwd > 0:
45                     print(f‘You have {count_pwd} times,then will locked!‘)
46                     password = input(‘password:‘)
47                     if password == file_password:
48                         print(‘Welcome to Python!‘)
49                         sys.exit(0)
50                     else:
51                         print(‘Password is wrong,Please re-enter...‘)
52                         count_pwd -= 1
53                     if count_pwd == 0:
54                         with open(‘locked_user.txt‘, ‘r+‘, encoding=‘utf-8‘) as write_locked_user:
55                             write_locked_user.write(username)
56                         print(f‘{username} is locked!‘)
57                         sys.exit(0)
58         else:
59             print(f‘{username} is not exist,Please re-enter...‘)
60 
61     if count == 3:
62         wait_5s()
63         count = 0

Python3源碼_賬號密碼輸入接口