Old boy Python_12 Period _ first day _homework_ account entry lock

Import SYS #导入系统
User_system = "Super big player" #定义系统名
User_admin = "Andy" #定义管理员
user_name = input ("Please enter user name \ n") #用户输入用户名
Lock_file = open ("Lockfile.txt", ' r+ ') #定义本地锁定文件
Lock_list = Lock_file.readlines () #获取每一行
For Lock_line in Lock_list: #循环lock文件
if user_name = = Lock_line.strip (' \ n '): #去掉换行, if lock, exit directly
Print ("Your account has been locked, please contact the Administrator")
Sys.exit ()
User_file = open ("User.txt", ' R ') #定义用户列表
User_list = User_file.readlines ()
For User_line in User_list: #遍历用户列表
(name,passwd) = User_line.strip (). Split () #分别获取账号和密码
If user_name = = Name: #如果用户名正确
j = 0
While J < 3: #密码不超过3次就不断循环
User_password = input ("Please enter password \ n") #用户输入密码
if passwd = = User_password: #如果密码正确, enter the system
Sys.exit ("entered correctly, will enter%s"%user_system)
Else
If J!=2: #如果密码错误, and try less than 3 times
Print ("User:%s password is wrong, please re-enter, there is%d chance, if the wrong 3 times, will lock the user"% (name,2-j))
J + = 1
Else
Lock_file.write (name + ' \ n ') #如果尝试次数大于等于3次, writes the user to the lock list
Print ("User%s has been tried three times, will lock"%user_name)
Sys.exit ()
Else
Pass
Else
Sys.exit ("User%s does not exist, please contact Administrator%s"% (user_name,user_admin)) #如果用户名不存在, will exit
User_file.close () #关闭user文件
Lock_file.close () #关闭lock文件

Old boy Python_12 Period _ first day _homework_ account entry lock