帮看看什么问题

Question

private void button1_Click(object sender, EventArgs e)
        {
            try            
            {               
                               
                int port = 2000;                
                string host = "192.168.0.127";                
                IPAddress ip = IPAddress.Parse(host);                
                IPEndPoint ipe = new IPEndPoint(ip, port);//把ip和端口转化为IPEndPoint实例                  c = null;
                c = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//创建一个Socket
               // c.ReceiveTimeout = 3000;
                //ShowMessage("Conneting...");               
                c.Connect(ipe);//连接到服务器                   string sendStr = "hello!This is a socket test";
                byte[] bs = Encoding.ASCII.GetBytes(sendStr);
                c.Send(bs, bs.Length, 0);//发送测试信息                  bytes = c.Receive(recvBytes, recvBytes.Length, 0);//从服务器端接受返回信息 
                recvStr = Encoding.ASCII.GetString(recvBytes, 0, bytes);
                if (recvStr=="nihao")
                {
                    string dd = "nihuai";
                    byte[] ds = Encoding.ASCII.GetBytes(dd);
                    c.Send(ds, ds.Length, 0);//发送测试信息
                  
                }
                richTextBox1.AppendText(recvStr + "\r\n");
                richTextBox1.ScrollToCaret();                //c.Disconnect(true);
            }           
            catch (ArgumentNullException a)
            {
                MessageBox.Show(String.Format("ArgumentNullException:{0}", a));
            }            
            catch (SocketException a)
            {
                MessageBox.Show(String.Format("SocketException:{0}", a.Message));
            }
           // MessageBox.Show(String.Format("PressEntertoExit"));
        }那个判断服务器返回的值再次发送  好像服务器接收不了啊！！帮看看，谢谢了

Answer 1

哦 这是我服务器代码  是循环的啊
try
            {
                Socket s;
                int port = 2000;
                string host = "192.168.0.127";
                IPAddress ip = IPAddress.Parse(host);
                IPEndPoint ipe = new IPEndPoint(ip, port);
                s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                //创建一个Socket类                
                s.Bind(ipe);//绑定2000端口               
                s.Listen(0);//开始监听                
                //ShowMessage("Waitforconnect");                
                while (true)                
                {                    
                    Socket temp = s.Accept();//为新建连接创建新的Socket。                    
                    //ShowMessage("Getaconnect from " + temp); //this.Invoke(new ShowMes(ShowMessage), "Getaconnect");                    
                    string recvStr = "";                    
                    byte[] recvBytes = new byte[1024];                   
                    int bytes;                    
                    bytes = temp.Receive(recvBytes, recvBytes.Length, 0);//从客户端接受信息                   
                    recvStr = Encoding.ASCII.GetString(recvBytes, 0, bytes);                   
                    //ShowMessage(String.Format("ServerGetMessage:{0}", recvStr));//this.Invoke(new ShowMes(ShowMessage), String.Format("ServerGetMessage:{0}", recvStr)); //把客户端传来的信息显示出来                   
                    string sendStr = Convert.ToString("nihao");                   
                    byte[] bs = Encoding.ASCII.GetBytes (sendStr);                   
                    temp.Send(bs, bs.Length, 0);//返回客户端成功信息               
                }