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Select Tcp Client

/* C# Network Programming  by Richard Blum Publisher: Sybex  ISBN: 0782141765 */ using System; using System.Collections; using System.Net; using System.Net.Sockets; using System.Text; public class SelectTcpClient {    public static void Main()    {       Socket sock = new Socket(AddressFamily.InterNetwork,                         SocketType.Stream, ProtocolType.Tcp);       IPEndPoint iep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 9050);       byte[] data = new byte[1024];       string stringData;       int recv;       sock.Connect(iep);       Console.WriteLine("Connected to server");       recv = sock.Receive(data);       stringData = Encoding.ASCII.GetString(data, 0, recv);       Console.WriteLine("Received: {0}", stringData);       while(true)       {          stringData = Console.ReadLine();          if (stringData == "exit")             break;          data = Encoding.ASCII.GetBytes(stringData);          sock.Send(data, data.Length, SocketFlags.None);          data = new byte[1024];          recv = sock.Receive(data);          stringData = Encoding.ASCII.GetString(data, 0, recv);          Console.WriteLine("Received: {0}", stringData);       }       sock.Close();    } }