C# Socket服务器及多客户端连接示例

服务端代码[掌握台示例]

static List<Socket> Sockets = new List<Socket>();
        static void Main(string[] args)
        {
            int port = 10;
            byte[] buffer = new byte[1024];

            IPEndPoint localEP = new IPEndPoint(IPAddress.Any, port);
            Socket listener = new Socket(localEP.Address.AddressFamily, SocketType.Stream, ProtocolType.Tcp);

            try
            {
                listener.Bind(localEP);
                listener.Listen(10);
                Console.WriteLine("期待客户端衔接....");
                while (true) //该操作用于多个客户端衔接
                {
                    Socket sc = listener.Accept();//接收一个衔接
                    Sockets.Add(sc); //将衔接的客户端, 添加到内存当中
                    Thread t = new Thread(new ThreadStart(() => ReceiveData(sc))); //开启当前Socket线程, 去履行获得数据的动作,与客户端通讯
                    t.IsBackground = true;
                    t.Start();
                }


            }
            catch (Exception e)
            {
                Console.WriteLine(e.ToString());
            }
            Console.ReadLine();
        }

        public static void ReceiveData(Socket sc)
        {
            byte[] buffer = new byte[1024];
            Console.WriteLine("接收到了客户端：" + sc.RemoteEndPoint.ToString() + "衔接....");
            //握手
            int length = sc.Receive(buffer);//接收客户端握手信息
            sc.Send(PackHandShakeData(GetSecKeyAccetp(buffer, length)));while (true)
            {
                try
                {
                    //接收客户端数据
                    Console.WriteLine("期待客户端数据....");
                    length = sc.Receive(buffer);//接收客户端信息
                    string clientMsg = AnalyticData(buffer, length);
                    Console.WriteLine("接收到客户端数据：" + clientMsg);
                    //发送数据
                    string sendMsg = "服务端返回信息:" + clientMsg;
                    sc.Send(PackData(sendMsg));
                }
                catch (Exception ex)
                {
                    Sockets.Remove(sc);  //如果吸收的进程中,断开, 那末内存中移除当前Socket对象, 并且退出当前线程
                    Console.WriteLine("客户端已断开衔接!");
                    return;
                }
            }
        }static List<Socket> Sockets = new L