閑著無聊，寫了個簡單的C/S Socket程序，功能很簡單，服務器在9000端口監聽socket接入，只要有接入，就發送"Welcome."消息給客戶端。

代碼分2塊，server端：

class Program{static void Main(string[] args){TcpListener lsner = new TcpListener(9000);lsner.Start();Console.WriteLine("started in port: 9000");while (true){TcpClient client=lsner.AcceptTcpClient();Console.WriteLine("new client received. hashcode: {0}", client.GetHashCode());ThreadPool.QueueUserWorkItem(new WaitCallback(ProcessTcpClient), client);}Console.ReadKey();}private static void ProcessTcpClient(object state){TcpClient client=state as TcpClient;if(client==null)Console.WriteLine("client is null");NetworkStream ns=client.GetStream();StreamWriter sw = new StreamWriter(ns);sw.WriteLine("Welcome.");sw.Flush();sw.Close();client.Close();}

client端：

class Program{static void Main(string[] args){IPAddress address = IPAddress.Parse("127.0.0.1");IPEndPoint ep=new IPEndPoint(address, 9000);TcpClient client = new TcpClient();client.Connect(ep);NetworkStream ns=client.GetStream();StreamReader sr = new StreamReader(ns);Console.WriteLine(sr.ReadToEnd());sr.Close();sr.Dispose();ns.Close();ns.Dispose();client.Close();Console.ReadKey();}}

運行效果圖如下：

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總結

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