Python学习笔记1：用户登录

 1 import getpass,sys
 2 u=0
 3 while  u< 3:
 4         user_name = input(‘Please input you name：‘)
 5 #       user_passwd = getpass.getpass(‘Please input you password:‘)
 6         lock_file = open(‘C:/安装包/pycharm/day01/user_lock.txt‘,‘r+‘)
 7         lock_line = lock_file.readlines()
 8         for lock in lock_line:
 9                 user_lock = lock.strip(‘\n‘)
10                 if user_name == user_lock:
11 #                        print(‘%s is lock!‘ % user_name)
12                         sys.exit(‘%s is lock!‘ % user_name)
13         list_file = open(‘C:/安装包/pycharm/day01/user_list.txt‘,‘r‘)
14         list_line = list_file.readlines()
15         for list in list_line:
16                 (user_list,passwd_list) = list.strip(‘\n‘).split()
17                 if user_name == user_list:
18                         i = 0
19                         while i < 3:
20                                 user_passwd = getpass.getpass(‘Please input you password：‘)
21                                 if user_passwd == passwd_list:
22                                         sys.exit(‘%s welcome to www.hao123.com‘ % user_name)
23                                 print(‘Please enter again!‘)
24                                 i += 1
25                         else:
26                                 lock_file.write(user_name+‘\n‘)
27                                 sys.exit(‘Sorry,%s is locking. please contact the administrator‘)
28 #                print(‘Sorry, %s not exsit!‘)
29         list_file.close()
30         lock_file.close()
31         u += 1
32 sys.exit(‘input error!!!‘)