python入门：模拟简单用户登录（自写）

 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #模拟简单用户登录（自写）
 import getpass
 a = raw_input("Please enter the username:")
 b = getpass.getpass("Please enter your password:")
 user = "admin"
 pwd = "admin"
 if a == "wangshaohan" and b =="admin888":
     print("Ordinary user login successfully!")
     """
     “\n"要是字符串类型才能换行！
      字符串和变量之间必须有拼接  +  号！
      拼接还要前后类型一致才可以，必须都是str
     """
     print("Your username is:" + a +'\n' + "Your password is:"+ b)
 elif user == a == "admin" and pwd == b == "admin":
     print("Administrator user logged in successfully!")
     print("Your username is:" + a +'\n' + "Your password is:"+ b)
 else:
     print("User login failed!" + '\n' + "Your username is:" + a +'\n' + "Your password is:"+ b)