error <Error> 可选，使用 error 事件触发的错误
error
¥error <Error> Optional, an error to emit with error event
返回：<this>
¥Returns: <this>
销毁消息。一旦套接字与消息关联并连接，则该套接字也将被销毁。
¥Destroys the message. Once a socket is associated with the message and is connected, that socket will be destroyed as well.