# -*- coding:utf-8 -*-
#!python3
user_list = [
  {'name':'ad1','passwd':'123'},
  {'name':'ad2','passwd':'123'},
  {'name':'ad3','passwd':'123'},
  {'name':'ad4','passwd':'123'}
]
#初始状态，用来保存登陆的用户，
client_dic = {'username':None,'login':False}
#添加新功能
def auth_func(func):
  def wrapper(*args,**kwargs):
    #参数检查，判断是否有用户登录，如果有，不用验证，直接执行函数的功能
    if client_dic['username'] and client_dic['login']:
      res = func(*args,**kwargs)
      return res
    #输入用户名和密码
    username = input('用户名:').strip()
    passwd = input('passwd:').strip()
    #对比列表，检查用户名和密码是否正确
    for user_dic in user_list:
      if username == user_dic['name'] and passwd == user_dic['passwd']:
        client_dic['username'] = user_dic['name']
        client_dic['login'] = True
        res = func(*args,**kwargs)
        return res
    else:
      print('用户名或者密码错误!')
  return wrapper
@auth_func
def index():
  print("欢迎来到主页")
@auth_func
def home(name):
  print("欢迎回家:%s"%name)
@auth_func
def shoppping_car():
  print('购物车里有[%s,%s,%s]'%('奶茶','妹妹','娃娃'))
print(client_dic)
index()
print(client_dic)
home('root')