``` client, err := flx.NewSshClient(mc) if wshandleError(wsConn, err) { return } defer client.Close() startTime := time.Now() //下面注释的这段代码功能是什么?我注释掉后还是正常能ssh到指定服务器 //ssConn, err := util.NewSshConn(cols, rows, client) //if wshandleError(wsConn, err) { // return //} //defer ssConn.Close() sws, err := model.NewLogicSshWsSession(cols, rows, true, client, wsConn) if wshandleError(wsConn, err) { return } defer sws.Close() quitChan := make(chan bool, 3) sws.Start(quitChan) go sws.Wait(quitChan) ```