#! /usr/bin/env python # -*- coding:utf-8 -*- user_name = "lifei" user_passwd = "123" flag = 0 while flag < 10: user = input("Input your username:").strip() if flag >= 3: with open('heimingdan.txt', 'r+') as lock_file: for lock_line in lock_file.readlines(): if user in lock_line.strip(): # 黑名單禁止登陸 exit("login disabled") passwd =input("Input your password:").strip() if passwd == user_passwd and user == user_name: print("welcome %s login." %(user)) break else: print ("Invalid username or password!") flag += 1 if flag >= 3: f = open("heimingdan.txt","a") f.write(user+'\n') f.close()
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