C#使用簡單的連接池完成P2P聊天程序（核心代碼）

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net.Sockets;
using System.Net;
using System.IO;
using System.Threading;

namespace WinNine
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Listener(Object o)
        {
           
            TcpListener listener = new TcpListener(IPAddress.Any,444);
            listener.Start();

            while (true)
            {
                TcpClient client = listener.AcceptTcpClIEnt();
                NetworkStream netstream = clIEnt.GetStream();
                StreamReader sr = new StreamReader(netstream);
                this.listBox1.Items.Add(sr.ReadLine());
               
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            ThreadPool.QueueUserWorkItem(