// default 127.0.0.1:9501/ws
	s := new(gws.Server)

    // 接收消息事件
	s.OnMessage = func(c *gws.Conn, fd int, msg string, err error) {
		fmt.Printf("client %d said %s \n", fd, message)
	}

    // 连接成功事件
	s.OnOpen = func(c *gws.Conn, fd int) {
		fmt.Printf("client %d online \n", fd)
	}

    // 连接关闭事件
	s.OnClose = func(c *gws.Conn, fd int) {
		fmt.Printf("client %d had offline \n", fd)
	}

    // 启动服务
	if err := s.ListenAndServe(); err != nil {
		panic(err)
	}