在Silverlight中使用Socket进行通信(1)Socket"请求-回复"方式的简易数据交换

using  System; 
using  System.Collections.Generic; 
using  System.Linq; 
using  System.Text; 
using  System.IO; 
using  System.Net.Sockets; 

namespace  SocketServer 
{ 
     class  Program 
    { 
         public   static  TcpListener tcpListener; 
         private   static  NetworkStream networkStream; 
         private   static  StreamReader streamReader; 
         private   static  StreamWriter streamWriter; 
         public   static  Socket socketForClient; 

         static   void  Main( string [] args) 
        { 
             try  
            { 
                tcpListener  =   new  TcpListener( 1234 ); 
                tcpListener.Start(); 
                Console.WriteLine( " 服务启动，开始监控1234端口 " ); 

                socketForClient  =  tcpListener.AcceptSocket(); 
                networkStream  =   new  NetworkStream(socketForClient); 
                streamWriter  =   new  StreamWriter(networkStream); 
                streamReader  =   new  StreamReader(networkStream); 
                 try  
                { 
                     if  (socketForClient.Connected) 
                    { 
                        Console.WriteLine( " 客户端已连接 " ); 
                         string  strInput  =  streamReader.ReadLine(); 
                        Console.WriteLine( " 从客户端传入的字符串是： "   +  strInput); 
                         string  strOutput  =  strInput.ToUpper(); 
                        streamWriter.Write(strOutput); 
                        Console.WriteLine( " 转换后字符串是 "   +  strOutput); 
                        streamWriter.Flush(); 
                    } 
                } 
                 catch  (Exception ex) 
                { 
                    Console.WriteLine( " 出现异常： "   +  ex.Message); 
                } 
            } 
             catch (Exception ex) 
            { 
                Console.WriteLine( " 发生异常，关闭连接 " ); 
                tcpListener.Stop(); 
                streamWriter.Close(); 
                streamReader.Close(); 
                networkStream.Close(); 
            } 
        } 
    } 
}

using  System; 
using  System.Collections.Generic; 
using  System.Linq; 
using  System.Text; 
using  System.IO; 
using  System.Net.Sockets; 

namespace  SocketClient 
{ 
     class  Program 
    { 
         public   static  TcpClient myclient; 
         private   static  NetworkStream networkStream; 
         private   static  StreamReader streamReader; 
         private   static  StreamWriter streamWriter; 

         static   void  Main( string [] args) 
        { 
             try  
            { 
                 try  
                { 
                    myclient  =   new  TcpClient( " localhost " ,  1234 ); 
                    Console.WriteLine( " 已经连接到localhost的1234端口 " ); 
                } 
                 catch  (Exception ex) 
                { 
                    Console.WriteLine( " 未能在1234端口连接上服务器 " ); 
                } 
                networkStream  =  myclient.GetStream(); 
                streamReader  =   new  StreamReader(networkStream); 
                streamWriter  =   new  StreamWriter(networkStream); 
                Console.WriteLine( " 请输入一串小写字母： " ); 
                 string  strInput  =  Console.ReadLine(); 
                streamWriter.Write(strInput); 
                Console.WriteLine( " 正在发送消息 " ); 
                streamWriter.Flush(); 
                 string  strServerComes  =  streamReader.ReadLine(); 
                Console.WriteLine( " 正在从服务端收取消息 " ); 
                Console.WriteLine( " 从服务端收到的消息是： "   +  strServerComes); 
            } 
             catch (Exception ex) 
            { 
                Console.WriteLine( " 发生异常，关闭连接 " ); 
                streamReader.Close(); 
                streamWriter.Close(); 
                networkStream.Close(); 
            } 
        } 
    } 
}