private void btnStartServer_Click(object sender, EventArgs e) { if (btnStartServer.Text == "啟動") { try { server.ServerStartup(Convert.ToInt32(textBox1.Text), 10); btnStartServer.Text = "關閉"; } catch (Exception ex) { MessageBox.Show(ex.Message); } } else { // try { server.CloseServer(); btnStartServer.Text = "啟動"; } // catch (Exception ex) { // MessageBox.Show(ex.Message); } } }