private void button1_Click(object sender, EventArgs e)//로그인 버튼 클릭
        {
            reciever = new Thread(new ThreadStart(returned));
            reciever.Start();
            string _id   = text_id.Text;
            string _pw   = text_pw.Text;
            string query = "select name_room,seatnum from owner where ID = '" + _id + "' and PW = '" + _pw + "'";

            socket.changeFrmNum(0);
            socket.send(query);
        }
        private void button1_Click(object sender, EventArgs e)
        {//회원가입 버튼 클릭시
            string id    = text_id.Text;
            string pw    = text_pw.Text;
            string name  = text_name.Text;
            string x     = text_x.Text;
            string y     = text_y.Text;
            string sit   = "00000000000000000000000000000000000000000000000000";
            string query = "Insert into owner (ID,PW,name_room,seatnum,loc_x,loc_y,socket_num) values ('" + id + "','" + pw + "','" + name + "','" + sit + "'," + x + "," + y + "," + 0 + ")";

            text_id.Text = query;
            socketLink.changeFrmNum(2);
            socketLink.send(query);
            this.Close();
        }