基于Socket的Winform聊天小程序

基于Socket的Winform聊天小程序，可实现多人在线聊天，包含客户端及服务端源码，代码简洁易懂，注释清晰，方便理解

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace socketClient
{
    public partial class Form1 : Form
    {
        private int count = 0;
        public Form1（）
        {
            InitializeComponent（）;
        }
        /// 

        /// tcp客户端
        /// 

        private TcpClient _client;

        /// 

        /// 窗体加载事件
        /// 

        private void Form1_Load（object sender EventArgs e）
        {
            //初始化tcp客户端
            _client = new TcpClient（）;
            try
            {
                _client.Connect（IPAddress.Parse（“111.230.240.198“） 10800）;
            }
            catch （Exception ex）
            {
                MessageBox.Show（string.Format（“未能连接到服务器 {0}“ ex.Message））;
                this.Close（）;
                return;
            }

            //接收消息线程
            Thread reciveMessageThread = new Thread（ReciveMessage）;
            reciveMessageThread.Start（）;
        }

        /// 

        /// 窗体关闭事件
        /// 

        private void Form1_FormClosing（object sender FormClosingEventArgs e）
        {
            _client.Close（）;
        }
        

        /// 

        /// 接收消息
        /// 

        private void ReciveMessage（）
        {
            try
            {
                NetworkStream stream = _client.GetStream（）;
                while （true）
                {
                    byte[] data = new byte[1024];
                    int length = stream.Read（data 0 data.Length）;
                    if （length > 0）
                    {
                        string msg = Encoding.UTF8.GetString（data 0 length）;

                        //添加到前端消息列表
                        int num = count - lbx_Messages.Items.Count;
                        for （int i = 0; i < num; i++）
                        {
                            lbx_Messages.Items.Add（““）;
                        }
                        lbx_Messages.Items.Add（msg）;
                        count += 1;

                    }
                    else
                    {
                        MessageBox.Show（“服务器已关闭“）;
                        stream.Dispose（）;
                        break;
                    }
                }
            }
            catch （Exception ex）
            {
                //Read是阻塞方法 程序退出释放资源是会引发异常 不做处理 线程结束
            }
        }
        

        private void btn_Send_Click（object sender EventArgs e）
        {
            //发送消息至服务器
            string msg = tbx_Message.Text;
            byte[] data = Encoding.UTF8.GetBytes（msg）;
            try
            {
                NetworkStream stream = _client.GetStream（）;
                stream.Write（data 0 data.Length）;

                //添加到前端消息列表

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        189  2017-12-12 16:46  SocketDemo\socketClient\App.config

     文件      10752  2017-12-13 14:11  SocketDemo\socketClient\bin\Debug\socketClient.exe

     文件        189  2017-12-12 16:46  SocketDemo\socketClient\bin\Debug\socketClient.exe.config

     文件      22016  2017-12-13 14:11  SocketDemo\socketClient\bin\Debug\socketClient.pdb

     文件      22696  2017-12-13 16:11  SocketDemo\socketClient\bin\Debug\socketClient.vshost.exe

     文件        189  2017-12-12 16:46  SocketDemo\socketClient\bin\Debug\socketClient.vshost.exe.config

     文件        490  2017-03-19 05:00  SocketDemo\socketClient\bin\Debug\socketClient.vshost.exe.manifest

     文件       3665  2017-12-13 14:11  SocketDemo\socketClient\Form1.cs

     文件       5062  2017-12-12 18:08  SocketDemo\socketClient\Form1.Designer.cs

     文件       5817  2017-12-12 18:08  SocketDemo\socketClient\Form1.resx

     文件       1464  2017-12-13 11:31  SocketDemo\socketClient\obj\Debug\DesignTimeResolveAssemblyReferences.cache

     文件       7080  2017-12-12 16:46  SocketDemo\socketClient\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件        546  2017-12-13 16:11  SocketDemo\socketClient\obj\Debug\socketClient.csproj.FileListAbsolute.txt

     文件       1012  2017-12-13 14:11  SocketDemo\socketClient\obj\Debug\socketClient.csproj.GenerateResource.Cache

     文件       2384  2017-12-12 17:33  SocketDemo\socketClient\obj\Debug\socketClient.csprojResolveAssemblyReference.cache

     文件      10752  2017-12-13 14:11  SocketDemo\socketClient\obj\Debug\socketClient.exe

     文件        180  2017-12-13 14:11  SocketDemo\socketClient\obj\Debug\socketClient.Form1.resources

     文件      22016  2017-12-13 14:11  SocketDemo\socketClient\obj\Debug\socketClient.pdb

     文件        180  2017-12-12 16:55  SocketDemo\socketClient\obj\Debug\socketClient.Properties.Resources.resources

     文件          0  2017-12-12 16:46  SocketDemo\socketClient\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs

     文件          0  2017-12-12 16:46  SocketDemo\socketClient\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs

     文件          0  2017-12-12 16:46  SocketDemo\socketClient\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs

     文件        524  2017-12-12 16:46  SocketDemo\socketClient\Program.cs

     文件       1332  2017-12-12 16:46  SocketDemo\socketClient\Properties\AssemblyInfo.cs

     文件       2837  2017-12-12 16:46  SocketDemo\socketClient\Properties\Resources.Designer.cs

     文件       5612  2017-12-12 16:46  SocketDemo\socketClient\Properties\Resources.resx

     文件       1099  2017-12-12 16:46  SocketDemo\socketClient\Properties\Settings.Designer.cs

     文件        249  2017-12-12 16:46  SocketDemo\socketClient\Properties\Settings.settings

     文件       3922  2017-12-12 16:53  SocketDemo\socketClient\socketClient.csproj

     文件        189  2017-11-30 15:39  SocketDemo\socketServer\App.config

............此处省略50个文件信息