c# - 更改我的客户端以使程序能够从服务器返回响应

Question

客户

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;

public class StateObject
{
    // Client socket.
    public Socket workSocket = null;
    // Size of receive buffer.
    public const int BufferSize = 256;
    // Receive buffer.
    public byte[] buffer = new byte[BufferSize];
    // Received data string.
    public StringBuilder sb = new StringBuilder();
}

public class Program
{
    public static ManualResetEvent connectDone = new ManualResetEvent(false);
    public static ManualResetEvent sendDone = new ManualResetEvent(false);
    public static ManualResetEvent receiveDone = new ManualResetEvent(false);

    public static void Connect(EndPoint remoteEP, Socket client)
    {
        client.BeginConnect(remoteEP,
            new AsyncCallback(ConnectCallback), client);

        connectDone.WaitOne();
    }
    private static void ConnectCallback(IAsyncResult ar)
    {
        try
        {
            // Retrieve the socket from the state object.
            Socket client = (Socket)ar.AsyncState;

            // Complete the connection.
            client.EndConnect(ar);

            Console.WriteLine("Socket connected to {0}",
                client.RemoteEndPoint.ToString());

            // Signal that the connection has been made.
            connectDone.Set();
        }
        catch (Exception e)
        {
            Console.WriteLine(e.ToString());
        }
    }
    private static void Send(Socket client, String data)
    {
        // Convert the string data to byte data using ASCII encoding.
        byte[] byteData = Encoding.ASCII.GetBytes(data);

        // Begin sending the data to the remote device.
        client.BeginSend(byteData, 0, byteData.Length, SocketFlags.None,
            new AsyncCallback(SendCallback), client);
    }
    private static void SendCallback(IAsyncResult ar)
    {
        try
        {
            // Retrieve the socket from the state object.
            Socket client = (Socket)ar.AsyncState;

            // Complete sending the data to the remote device.
            int bytesSent = client.EndSend(ar);
            Console.WriteLine("Sent {0} bytes to server.", bytesSent);

            // Signal that all bytes have been sent.
            sendDone.Set();
        }
        catch (Exception e)
        {
            Console.WriteLine(e.ToString());
        }
    }
    private static void Receive(Socket client)
    {
        try
        {
            // Create the state object.
            StateObject state = new StateObject();
            state.workSocket = client;

            // Begin receiving the data from the remote device.
            client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
                new AsyncCallback(ReceiveCallback), state);
        }
        catch (Exception e)
        {
            Console.WriteLine(e.ToString());
        }
    }
    private static void ReceiveCallback(IAsyncResult ar)
    {
        try
        {
            // Retrieve the state object and the client socket 
            // from the asynchronous state object.
            StateObject state = (StateObject)ar.AsyncState;
            Socket client = state.workSocket;
            // Read data from the remote device.
            int bytesRead = client.EndReceive(ar);
            if (bytesRead > 0)
            {
                // There might be more data, so store the data received so far.
                state.sb.Append(Encoding.ASCII.GetString(state.buffer, 0, bytesRead));
                //  Get the rest of the data.
                client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
                    new AsyncCallback(ReceiveCallback), state);
            }
            else
            {
                // All the data has arrived; put it in response.
                if (state.sb.Length > 1)
                {
                    string response = state.sb.ToString();
                    Console.WriteLine(response);
                }
                // Signal that all bytes have been received.
                receiveDone.Set();
            }
        }
        catch (Exception e)
        {
            Console.WriteLine(e.ToString());
        }
    }
    static void Main(string[] args)
    {
        //IPAddress ipAddress = System.Net.IPAddress.Loopback;
        IPAddress ipAddress = IPAddress.Parse("192.168.0.100");
        IPEndPoint localEndPoint = new IPEndPoint(ipAddress, 1515);
        Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        Connect(localEndPoint, sock);
        string packet;
        //while (true)
        //{
            packet = Console.ReadLine();
            packet += "<EOF>";
            Send(sock, packet);
            Receive(sock);
            connectDone.WaitOne();
        //}
    }
}

这是我的客户端，这个客户端我将通过另一个程序通过它的 exe 文件执行，我想要更改的是这个邮件从服务器响应并在服务器响应后关闭。我需要在这段代码中改变什么？