ser_dic={'username':None,'login':False}#用户字典，反应登入状态，用字典做全局变量

def idf(func):#验证登入信息是否正确

    def wrapper(*args,**kwargs):

        if user_dic['username'] and user_dic['login']:#验证登入状态，如果正确登入，则直接执行

            print("验证通过")

            res = func(*args, **kwargs)

            return res

        else:

            username=input('please input username: '.strip())#.strip指的是移除前后空格或者制表符

            password=input('pleasr input password: ')

            if username=='sxj' and password=='abc':

                user_dic['username']=username#更新用户字典的登入状态

                user_dic['login']=True#更新用户字典的登入状态

                print("验证通过")

                res = func(*args, **kwargs)

                return res

            else:

                print('I am sorry')

    return wrapper

@idf

def index():

    print('welcome to index')

@idf

def home(name):

    print('%s,welcome to home'%name)

@idf

def shopping_car():

    print('this is shopping car,you have %s,%s,%s'%('奶茶','妹妹','sxj'))

home('sxj')

shopping_car()

user_list=[#定义密码库

    {'name':'sxj','password':''},

    {'name':'abc','password':''},

    {'name':'def','password':''},#注意这里的222是字符串类型

    {'name':'ghw','password':333}#注意这里的333是int 类型

]

current_dic={'username':None,'login':False}#用户字典，反应登入状态，用字典做全局变量

def idf(func):#验证登入信息是否正确

    def wrapper(*args,**kwargs):

        if current_dic['username'] and current_dic['login']:#验证登入状态，如果正确登入，则直接执行

            print("验证通过")

            res = func(*args, **kwargs)

            return res

        else:

            user_name=input('please input username: '.strip())#.strip指的是移除前后空格或者制表符

            pass_word=input('please input password: '.strip())#注意这里输入的是字符串 与上面的333会因为类型不同导致密码错误

            for u_dic in user_list:

                if u_dic['name'] == user_name and str(u_dic['password'])== pass_word: #为了防止发生类型不同，所以用str强制转化为字符串类型

                    current_dic['username']=user_name#更新用户字典的登入状态

                    current_dic['login']=True#更新用户字典的登入状态

                    print("验证通过")

                    res = func(*args, **kwargs)

                    return res

            else:

                print('I am sorry')

    return wrapper

@idf

def index():

    print('welcome to index')

@idf

def home(name2):

    print('%s,welcome to home'%name2)

@idf

def shopping_car():

    print('this is shopping car,you have %s,%s,%s'%('奶茶','妹妹','sxj'))

print('First>',current_dic)

home('sxj')

print('Last>',current_dic)

shopping_car()