Python打怪升级Class1

#功能:本地文件存储之实现模拟登录
#用户名和密码保存在一个文件，所存储用户名密码输错三次锁定
import re
def checkUser(username):
    lock = open(‘lock.txt‘,)
    count = 0
    for line in lock:
        real_username = line.rstrip("\n")
        if real_username == username:
            count += 1
    if count == 3:
        return 0
while True:
    username = input("username:")
    password = input("password:")
    fh = open(‘user.txt‘)
    lock = open(‘lock.txt‘, ‘a+‘)
    for line in fh:
        real_username = re.split(‘:‘,line)[0]
        real_password = re.split(‘:‘,line)[1].rstrip("\n")
        if real_username == username:
            result = checkUser(username)
            if result == 0:
                print(username+" is Lock")
                break
            if real_password == password:
                print("Good,Login Successful")
                break
            else:
                print("Error")
                lock.write(username + "\n")
                break
    else:
        print("No have the",username)
    fh.close()
    lock.close()