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1、此为控制台程序，服务器启动侦听，客户端进行连接，并向服务器发送字符串，服务器将其转化为大写并发挥客户机（在同一台主机上运行）。服务器端usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Net;usingSystem.Net.Sockets;namespaceSynTCPServer{classProgram{staticvoidMain(string[]args){SocketListener=newSocket(AddressFamily.InterNetwor
2、k,SocketType.Stream,ProtocolType.Tcp);//IPAddressmyip=Dns.GetHostAddresses(Dns.GetHostName())[1];//Stringstr=Dns.GetHostName();//Console.WriteLine(str);//Console.WriteLine(myip);//foreach(IPAddressipinmyip)//{//Console.WriteLine(ip);//}Console.Read();IPEndPointiep=newIPEndPoint(IPAddress.Parse("127
3、.0.0.1"),5555);Listener.Bind(iep);Listener.Listen(10);Console.WriteLine("等待连接");Socketsocket=Listener.Accept();Console.WriteLine("连接成功，等待接受数据");Byte[]buffer=newbyte[128];intcount=socket.Receive(buffer,0,buffer.Length,SocketFlags.None);Console.WriteLine("成功接受数据");StringstrRcv=Encoding.ASCII.GetStrin
4、g(buffer,0,count);stringstrsnt=strRcv.ToUpper();buffer=Encoding.ASCII.GetBytes(strsnt);count=socket.Send(buffer,0,buffer.Length,SocketFlags.None);Console.WriteLine("发送数据");socket.Shutdown(SocketShutdown.Both);socket.Close();Listener.Close();Console.Read();}}}客户端usingSystem;usingSystem.Collections.G
5、eneric;usingSystem.Linq;usingSystem.Text;usingSystem.Net;usingSystem.Net.Sockets;namespaceSynTcpclient{classProgram{staticvoidMain(string[]args){Socketsocket=newSocket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);IPEndPointRmtEP=newIPEndPoint(IPAddress.Parse("127.0.0.1"),5555);soc
6、ket.Connect(RmtEP);Console.WriteLine();StringStrInput=Console.ReadLine();Byte[]data=Encoding.ASCII.GetBytes(StrInput);socket.Send(data,0,data.Length,SocketFlags.None);Int32count=socket.Receive(data,0,data.Length,SocketFlags.None);StringstrRcv=Encoding.ASCII.GetString(data,0,count);Console.WriteLine
7、(strRcv);socket.Shutdown(SocketShutdown.Both);socket.Close();Console.Read();}}}
