Use decorator to log in to verify

user_list=[

 {'name':'tom','passwd':'123< span style="color: #800000;">'},

 {'name':'ubuntu','passwd':'123< span style="color: #800000;">'},

 {'name':'centos','passwd':'123< span style="color: #800000;">'},

 {'name':'jane','passwd':'123< span style="color: #800000;">'},

]

current_dict = {'username':None,'login< span style="color: #800000;">':False}

def auth(auth_type = 'filedb'): #< span style="color: #008000;">The default verification method is filedb

 def auth_func(func):

 def wrapper(*args,**kwargs):

 print("The authentication method is:{}".format(auth_type))

 if auth_type == 'filedb':

 if current_dict['username'] and current_dict['login'< span style="color: #000000;">]:

 res = func()

 return res

 username = input("username:>>> ").strip()

 passwd = input("passwd:>>> ").strip()

 for user_dict in user_list:

 if username == user_dict['name'] and passwd == user_dict['passwd ']:

 current_dict['username'] = username

 current_dict['login'] =True

 res = func()

 return res

 else:

 print("Incorrect username or password")

 else:

 print("The ghost knows what the authentication method is--->{}" .format(auth_type))

 return wrapper

 return auth_func



@auth(auth_type = 'filedb')

def index():

 print("Welcome to the JD homepage")

@auth()

def home():

 print("Welcome home!")



@auth('sssssss')

def shopping_car():

 print("There is..." )



if __name__ == '__main__':

 index()

 home()

 shopping_car()

user_list=[

 {'name':'tom','passwd':'123< span style="color: #800000;">'},

 {'name':'ubuntu','passwd':'123< span style="color: #800000;">'},

 {'name':'centos','passwd':'123< span style="color: #800000;">'},

 {'name':'jane','passwd':'123< span style="color: #800000;">'},

]

current_dict = {'username':None,'login< span style="color: #800000;">':False}

def auth(auth_type = 'filedb'): #< span style="color: #008000;">The default verification method is filedb

 def auth_func(func):

 def wrapper(*args,**kwargs):

 print("The authentication method is:{}".format(auth_type))

 if auth_type == 'filedb':

 if current_dict['username'] and current_dict['login'< span style="color: #000000;">]:

 res = func()

 return res

 username = input("username:>>> ").strip()

 passwd = input("passwd:>>> ").strip()

 for user_dict in user_list:

 if username == user_dict['name'] and passwd == user_dict['passwd ']:

 current_dict['username'] = username

 current_dict['login'] =True

 res = func()

 return res

 else:

 print("Incorrect username or password")

 else:

 print("The ghost knows what the authentication method is--->{}" .format(auth_type))

 return wrapper

 return auth_func



@auth(auth_type = 'filedb')

def index():

 print("Welcome to the JD homepage")

@auth()

def home():

 print("Welcome home!")



@auth('sssssss')

def shopping_car():

 print("There is..." )



if __name__ == '__main__':

 index()

 home()

 shopping_car()