try
            {

                int port = 1003;
                string host = "192.168.0.129";
                IPAddress ip = IPAddress.Parse(host);
                IPEndPoint ipe = new IPEndPoint(ip, port);//把ip和端口转化为IPEndPoint实例
                Socket c = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//创建一个Socket
                int _p = 1003;

                c.Bind(new IPEndPoint(IPAddress.Parse("192.168.0.102"),_p));//本机IP192.168.0.102
                Console.WriteLine("Conneting...");
                c.Connect(ipe);//连接到服务器
                string sendStr = "hello!Thisisasockettest";
                byte[] bs = Encoding.ASCII.GetBytes(sendStr);
                Console.WriteLine("SendMessage");
                c.Send(bs, bs.Length, 0);//发送测试信息
                //c.SendTo(bs, ipe);
                string recvStr = "";
                byte[] recvBytes = new byte[1024];
                int bytes;
                while (true)
                {
                    bytes = c.Receive(recvBytes, recvBytes.Length, 0);//从服务器端接受返回信息
                    recvStr += Encoding.ASCII.GetString(recvBytes, 0, bytes);
                    Console.WriteLine("ClientGetMessage:{0}", recvStr);//显示服务器返回信息
                }
                 c.Close();
            }
            catch (ArgumentNullException e)
            {
                Console.WriteLine("ArgumentNullException:{0}", e);
            }
            catch (SocketException e)
            {
                Console.WriteLine("SocketException:{0}", e);
            }
            Console.WriteLine("PressEntertoExit");
            Console.ReadLine();

        }


//e.Message 为: "The requested address is not valid in its context"