我不知道這里的錯(cuò)誤是什么我知道這很亂但是在客戶端連接并發(fā)送消息后我得到了一個(gè)異常這里的錯(cuò)誤IDException in thread Thread-1:Traceback (most recent call last):  File "C:\Heights\PortableApps\PortablePython2.7.6.1\App\lib\threading.py", line 810, in __bootstrap_inner    self.run()  File "C:\Heights\PortableApps\PortablePython2.7.6.1\App\lib\threading.py", line 763, in run    self.__target(*self.__args, **self.__kwargs)  File "C:\Users\Gadi Tepper\PycharmProjects\Connection1\functions.py", line 12, in check_available_message    user_uid = user.user_uidAttributeError: Message instance has no attribute 'user_uid'這是功能import timefrom message import *from user import *def check_available_message(messages, users):    while True:        for message in messages:            for user in users:                user_uid = user.user_uid                dest_uid = message.receiver_uid                if user_uid == dest_uid:                    print("got here")                    send_message(messages, message, user.user_socket)def send_message(messages, message, user_socket):    print(message.sender_uid + " can send a message to: " + message.sender_uid)    time.sleep(1)    data = str((message.receiver_uid + "//" + message.sender_uid + "//" + message.data)).encode    user_socket.send(data)    messages.remove(message)這些是對(duì)象class User:    def __init__(self, user_uid, user_socket):        self.user_uid = user_uid        self.user_socket = user_socketclass Message:    def __init__(self, sender_uid, receiver_uid, data):        self.sender_uid = sender_uid        self.receiver_uid = receiver_uid        self.data = data