private Socket socketClient;//客户端套接字,关于实例化请参考C# Socket基础(三)之客户端连接服务器和接收消息

 1        /// <summary> 2         /// 发送数据到服务端 3         /// </summary> 4         private void Send() 5         { 6             if (socketClient == null) 7             { 8  9                 ShowMsg("服务器未启动！");10                 return;11             }12             byte[] b = System.Text.Encoding.UTF8.GetBytes(txtSend.Text.Trim());13             //客户端向服务器发送消息14             socketClient.Send(b);15             //清空文本16 17             ShowMsg("您对" + socketClient.RemoteEndPoint.ToString() + "说：" + txtSend.Text.Trim());18             txtSend.Text = "";19         }