keepalive message
常见例句
- In order to maintain presence, the chat application can send keep-alive messages on the websocket to prevent it being closed due to an idle timeout.
爲了保持存在的狀態，聊天應用要發送“連接保持（Keep Alive）”的消息給WebSocket，來避免該連接因爲閑置超時而關閉。 返回 keepalive message