TCP聊天+传输文件服务器服务器套接字v2.8 - 修复已知程序4个问题

def __in__(username) -> bool:
    return >> encode << (username) in data

    def login_data(self):
        while self.isOpen():
            try:
                response = json.loads(self.recv())
                return response["type"], response["username"], response["password"]
            except TypeError:
                self.quit()
     ...
    @ignore
    def forever_receive(self):
        while self.isOpen():
            result, reason, username = Database.handler(*self.login_data())
            self.send(json.dumps({"result": result, "reason": reason}))
            if result:
                self.username = username
                break
         ...

    def handle(self, dictionary: (dict, str)):
        >> self.loading_dialog.close() <<
        if isinstance(dictionary, dict):
            result = dictionary.get("result", False)
            reason = dictionary.get("reason", False)

            if not result:
                self.err_handle(reason)
            else:
                self.successful = True
                self.close()

        self.Enable(True)

D:\Anaconda3\python.exe "C:\Program Files\JetBrains\PyCharm 2022.1\plugins\python\helpers\pydev\pydevd.py" --multiprocess --qt-support=auto --client 127.0.0.1 --port 64076 --file user.pyw
已连接到 pydev 调试器(内部版本号 221.5080.212)2022-06-24 19:12:45,876 - selector_events.py[line:64] - DEBUG: Using selector: SelectSelector
Traceback (most recent call last):
  File "C:/Users/zhnwe/Desktop/ServerProject/user/user.pyw", line 1069, in timers
    timeit = self.get_time()
  File "C:/Users/zhnwe/Desktop/ServerProject/user/user.pyw", line 1095, in get_time
    return getattr(self, "end_time", time.time()) - self.start_time
TypeError: unsupported operand type(s) for -: 'NoneType' and 'float'

删除 >> self.end_time = None <<