装饰器2

import time

user,passwd = 'lian','abc123'
def auth(func):
    def wrapper(*args,**kwargs):
        username = input("Username:").strip()
        password = input("Password:").strip()
        if user == username and passwd == password:
            print('33[32;1mUser has passed authentication33[0m')
            func(*args,**kwargs)
        else:
            exit("33[32;1mInvalid username or password33[0m")
    return wrapper
def index():
    print('welcome to index page')
@auth
def home():
    print('welcome to home page')
@auth
def bbs():
    print("welcome to bbs page")

index()
home()
bbs()