c#异步socket

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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Net;using System.Net.Sockets;namespace server{    class Program    {        //服务端buffer为4字节        static byte[] buffer = new byte[1024];        static string Json = "";        static int connt = 0;        static void Main(string[] args)        {            Console.WriteLine("[Server]");            try            {                Socket socketServer = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);                socketServer.Bind(new IPEndPoint(IPAddress.Parse("127.0.0.1"), 4444));                socketServer.Listen(int.MaxValue);                Console.WriteLine("服务端已启动，等待连接...");                //接收连接                Socket ts = socketServer.Accept();                Console.WriteLine("客户端已连接");                //开始异步接收                ts.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), ts);                Console.WriteLine(Json);                Console.WriteLine(Convert.ToString(connt));                Console.ReadKey();            }            catch (Exception e)            {                                Console.WriteLine(e.Message);            }        }        static void ReceiveCallback(IAsyncResult result)        {            Socket ts = (Socket)result.AsyncState;            ts.EndReceive(result);            result.AsyncWaitHandle.Close();            Console.WriteLine("收到消息");            Json += Encoding.ASCII.GetString(buffer);            //清空数据，重新开始异步接收            buffer = new byte[buffer.Length];            connt += 1;            ts.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), ts);        }    }}

client

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Net;using System.Net.Sockets;namespace client{    class Program    {        static void Main(string[] args)        {            Console.WriteLine("[Client]");            try            {                Socket socketClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);                socketClient.Connect(IPAddress.Parse("127.0.0.1"), 4444);                Console.WriteLine("发送消息：");                 System.IO.StreamReader sr = new System.IO.StreamReader(@"C:\1.txt");                 string sendStr = sr.ReadLine();                //获取发送内容                while (true)                {                    Console.WriteLine("发送消息：");                    //同步发送数据                    socketClient.Send(Encoding.ASCII.GetBytes(sendStr));                }            }            catch (Exception e)            {                Console.WriteLine(e.Message);                Console.WriteLine("按任意键退出");                Console.ReadKey();            }        }    }}

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