Python12期培训班-day1-登陆验证代码分享

 #!/usr/bin/env python
 import sys
 import getpass
 afile = 'afile'
 bfile = 'bfile'
 circulation_num=0  #循环次数初始基数
 def deny_account(username):
         print("This account already locked!")
         with open(bfile, 'a+') as bf:     #此处最好为a+模式，本人之前使用a模式错误账号无法写入
             bf.write(username + '\n')
 #循环开始
 while circulation_num<3:
         username = input("\033[32;1mPlease input your username:\033[0m")
         flag = False
         with open(afile, 'r') as af:
                 for line in af.readlines():
                         user,pwd=line.strip().split()
                         if username==user:
                                 password=getpass._raw_input('Please input password:').strip()
                                 if username==user and password ==pwd:
                                     print('success!')
                                     flag = True
                                     break
                                 else:
                                      print('password error,please try again!')
                         else:
                             if circulation_num < 3:
                               print('User doesn`t exist!')
                               circulation_num += 1
                         break
         if flag == True:
                 print('Welcome %s come in TG!' % username)
                 break
 else:
     deny_account(username)

afile内容：

carl openstack

helen tellme

lucy tianle

linken is3333

bfile内容随意