#-*-coding:utf-8-*-
import os
import time
from functools import wraps
‘‘‘
1、編寫裝飾器，為多個函數加上認證的功能(用戶的賬號和密碼來源於文件)
2、要求登錄一次，後續函數都無需輸入用戶名和密碼
‘‘‘
FLAG = False
def login(func):
    def inner(*args,**kwargs):
        global FLAG
        ‘‘‘  登錄程序 ‘‘‘

        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(‘登錄失敗‘)
    return inner

@login
def shoplist_add():
    print("添加一個物品")
@login
def shoplist_del():
    print("刪除一個物品")
shoplist_add()
shoplist_del()

Python(73)_裝飾器函數練習_執行函數前登錄驗證