模拟登陆

#!/usr/bin/env python
# encoding:utf-8
# __author__: Chen Wei
# date: 2017-05-26
# blog: http://www.cnblogs.com/weiandlu/
#模拟登陆
import getpass
username = input("请输入您的帐号:").strip()
password = getpass.getpass("请输入你的密码:").strip()
count = 1
flag = False
locked_account = ""
with open("account","r",encoding="utf8") as f_read,open("account_locked","a+",encoding="utf8") as f_check:
    f_check.seek(0)
    for locked_user in f_check:
        if username == locked_user.strip():
            print("您的帐号已被锁定，请联系管理员解锁！")
            exit(0)
        else:
            continue
    for account_pass in f_read:
        account,passwd = account_pass.strip().split(",")
        if username == account.strip():
            while True:
               if password == passwd.strip():
                   print("登陆成功！")
                   flag = True
                   break
               elif count >= 3:
                   print("您输入错误密码超过3次，系统将锁定您的帐号！")
                   locked_account = username
                   flag = True
                   break
               count += 1
               password = input("密码输入错误，请重试！").strip()
            if flag:
                break
        else:
            continue
    else:
        print("您的帐号不存在，请联系管理员进行注册！")
        exit(0)
if locked_account:
    with open("account_locked", "a", encoding="utf8") as f_write:
        f_write.write(''.join(['\n',locked_account]))