# -*- coding: utf-8 -*-

 """

 Created on  10:32 2017/7/27

 @author: Song

 @E-mail: songkunhuang@163.com

 """

 # 输入用户名密码  验证信息从文件读取

 # 认证成功显示欢迎信息

 # 输错三次，锁定用户  保存到文件 黑名单

 # 解析用户文件  json   eval

 userinfo_file = open("userinfo.txt","r")

 user_list = []

 for user in userinfo_file.readlines():

     user = user.replace("\n", "")

     user_list.append(eval(user))

 # 读取黑名单

 blackuserlist_file = open("blackuserlist.txt","w+")

 black_list = []

 for blackuser in blackuserlist_file:

     blackuser = blackuser.replace("\n", "")

     black_list.append(blackuser)

 def sucess(name):

     print("welcome",name)

     exit()

 count = 3

 flag = 0

 while count > 0:

     username_input = input("Username:")

     password_input = input("Password:")

     if username_input in black_list:

         print("账户已经被锁定")

     else:

         for i in user_list:

             if username_input == i.get("name") and password_input == i.get("password"):

                 flag = 1

                 print("认证成功")

                 sucess(name=username_input)

                 break

         if flag == 0:

             count = count - 1

             if count > 0:

                 print("认证失败，你还可以尝试 %d 次" % count)

 else:

     for i in user_list:

         if username_input == i.get("name"):

             blackuserlist_file.write("".join([username_input, "\n"]))

             print("%s 账户已经锁定" % username_input)

     print("无法尝试")

 userinfo_file.close()

 blackuserlist_file.close()