本文实例讲述了Python实现账号密码输错三次即锁定功能。分享给大家供大家参考，具体如下：

初学Python—1

#实现账号输错三次即锁定user = "hubery"passwd = "123"confirm = 0lock=0fileOpen = open("username.txt","a+")fileOpen.seek(0)for i in range(3): username = input("username:") passsword = input("password:") for line in fileOpen.readlines(): if username == line.strip(): print("账户已经锁定！") lock=1 break else: continue fileOpen.seek(0) if user == username and lock ==0: if passwd == passsword: print("欢迎，欢迎！") confirm = 1 break else: print("账号户或者密码错误！") continue elif lock==1: continue else: print("1账号或者密码错误！") continuefileOpen.close()if confirm == 0 and lock==0: fileWrite=open("username.txt","a") fileWrite.write(username+"\n") fileWrite.close()

基本功能可以实现；

锁定的账号为第三次输错的用户名（待完善）

以下为完善版本，如有错误，请告知

import osuser = "hubery"passwd = "123"count = 0lock = 0fileOpen = open("username.txt", "a+")fileOpen.seek(0)while 1: for i in range(5): username = input("username:") passsword = input("password:") for line in fileOpen.readlines(): if username == line.strip(): print("账户已经锁定！") lock = 1 break else: continue fileOpen.seek(0) if user == username: if lock == 1: continue elif passsword == passwd: print("欢迎，欢迎！") os._exit(0) elif count < 2: print("账号或者密码错误！") count += 1 continue else: fileOpen.write(username + "\n") fileOpen.flush() print("密码输入错误超过三次，账户已经锁定！") fileOpen.seek(0) continue else: print("账号密码错误！") continue check=input("还想验证其他账户？（yes-继续，no-退出）") if "no"==check.lower(): os._exit(0) else: continuefileOpen.close()

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希望本文所述对大家Python程序设计有所帮助。