C#中TCP服务器端的收发

         using (Socket serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
            {
                serverSocket.Bind(new IPEndPoint(IPAddress.Any,9999));
                serverSocket.Listen(0);
                Console.WriteLine("Before Send");
                using (Socket clientSocket = serverSocket.Accept())
                {
                    Console.WriteLine("After Send");
                    clientSocket.Send(Encoding.UTF8.GetBytes("Hello TCP"));
                    byte[] dataBuffer = new byte[1024];
                    int count = clientSocket.Receive(dataBuffer);
                    Console.WriteLine(Encoding.UTF8.GetString(dataBuffer),0,count);
                }
            }