Python(73)_装饰器函数练习_执行函数前登录验证

Posted 2021-02-03 sunnybowen

#-*-coding:utf-8-*-
import os
import time
from functools import wraps
‘‘‘
1、编写装饰器，为多个函数加上认证的功能(用户的账号和密码来源于文件)
2、要求登录一次，后续函数都无需输入用户名和密码
‘‘‘
FLAG = False
def login(func):
    def inner(*args,**kwargs):
        global FLAG
        ‘‘‘  登录程序 ‘‘‘

        if FLAG:
            ret = func(*args, **kwargs)
            return ret
        else:
            username = input("username :" )
            password = input(‘password :‘ )
            if username == ‘bowen‘ and password == ‘22222‘:
                FLAG = True
                ret = func(*args,**kwargs)
                return ret
            else:
                print(‘登录失败‘)
    return inner

@login
def shoplist_add():
    print("添加一个物品")
@login
def shoplist_del():
    print("删除一个物品")
shoplist_add()
shoplist_del()