python输入错误密码用户锁定实现方法

#!/usr/bin/env python# -*- coding:utf-8 -*-# @lynn # 读取login.user文件，将内容赋值给变量login_f1,并关闭f1 = open('login.user','r')login_f1 = f1.read()f1.close() # 将变量login_f1的值，分隔符为‘:‘# 提取第0位元素，赋值给另一个变量ruserruser = login_f1.strip().split(":")[0]# 提取第1位元素，赋值给另一个变量rpwdrpwd = login_f1.split(":")[1] # 读取黑名单文件lock.user，将内容赋值给变量lock_f2，并关闭f2 = open('lock.user','r')lock_f2 = f2.readlines()f2.close() # 定义一个变量，用于计数t = 0 # 当t小于3时，无限循环。while t < 3:  name = input("请输入帐号:")  for a in lock_f2:    if name == a:      print("抱歉!此帐号已被锁定。")      exit()  for b in login_f1:    if name == ruser:      t = 0      while t < 3:        pwd = input("请输入密码:")        if pwd == rpwd:          print("Welcome!%s" %name)          exit()        else:          print("Sorry!wrong password.")        t += 1      else:        print("抱歉，错误次数达到3次，该账户被锁定!")        f = open('lock.user', 'w')        f.write('%s' % name)        f.close()      exit()

# -*- coding:utf-8 -*-#需求模拟用户登录，超过三次错误锁定不允许登陆  count = 0 #realname passwdReal_Username = "test"Real_Password = "test" #读取黑名单的内容f = open('black_user','r')lock_file = f.read()f.close() Username = input('请输入用户名:') #判断输入用户是否在黑名单内，如果在则不允许输入密码for i in range(1): if lock_file == Username: print('对不起，您的用户已锁定，暂时不允许使用！') exit() else: continue #尝试输入密码并对输入次数进行计数for i in range(3): Password = input("请输入密码:") if Username == Real_Username and Password == Real_Password: print("登录成功") break else: print("登录失败") count += 1 #如果输入三次错误密码，则提示用户名锁定，并将用户名拉黑if count == 3: print("对不起，您输入的密码错误次数已经达到3次，您的用户名将被锁定") f = open("black_user","w") f.write("%s"%Username) f.close()