import time


def auth(func):
    def wrapper(*args, **kwargs):
        username = input('username:').strip()
        password = input('password:').strip()
        if username == 'admin' and password == '123':
            func()
        else:
            exit()

    return wrapper

@auth
def index():
    print('index')

@auth
def home():
    print('home')

@auth
def bbs():
    print('bbs')


# 方法调用
index()
home()
bbs()