#需求
编写登陆接口
- 输入用户名密码
- 输错三次后锁定账户
- 认证成功后显示欢迎信息
#脚本目录
[root@localhost opt]# tree .├── account_lock.txt├── accounts.txt└── login.py0 directories, 3 files
#脚本文件
#!/usr/bin/env python#_*_ coding:utf-8 _*_import sysretry_limit = 3retry_count = 0account_file = 'accounts.txt'lock_file = 'account_lock.txt'#三次验证循环while retry_count < retry_limit: #让用户输入用户名 username = raw_input('\033[31m Username: \033[0m') lock_check = file(lock_file) for line in lock_check.readlines(): if username in line: sys.exit() #让用户输入密码 password = raw_input('\033[31m Password: \033[0m') #获得account文件的用户和密码 f = file(account_file,'rb') match_flag = False for line in f.readlines(): user,passwd = line.strip('\n').split() #对用户输入的用户密码进行匹配验证 if username == user and password == passwd: print 'Match!', username match_flag = True break f.close() #判断有没有匹配成功，不成功则进行下一次循环，成功则输入欢迎信息 if match_flag == False: print 'User unmatched' retry_count += 1 else: print "Welcome login wsyht Lerning system!" sys.exit() else: #三次循环完后开始锁账户 print 'Your account is locked!' f = file(lock_file,'ab') f.write(username) f.close() #查看账户文件
[root@localhost opt]# cat accounts.txt wsyht wsyht
#查看锁文件
[root@localhost opt]# cat account_lock.txt [root@localhost opt]#
#执行脚本不匹配显示
[root@localhost opt]# python login.py Username: jenkins Password: jenkinsUser unmatched Username: jenkins Password: jenkinsUser unmatched Username: jenkins Password: jenkinsUser unmatchedYour account is locked!
#查看锁文件
[root@localhost opt]# cat account_lock.txt jenkins[root@localhost opt]#
#执行脚本匹配显示
[root@localhost opt]# python login.py Username: wsyht Password: wsyhtMatch! wsyhtWelcome login wsyht Lerning system