C#简单TCP

C#版的简单socket——TCP实例，包含完整的服务端和客户端。

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

namespace Client
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }
        Socket socketSend;
        private void bt_connect_Click（object sender EventArgs e）
        {
            try
            {
                //创建客户端Socket，获得远程ip和端口号
                socketSend = new Socket（AddressFamily.InterNetwork SocketType.Stream ProtocolType.Tcp）;
                IPAddress ip = IPAddress.Parse（txt_ip.Text）;
                IPEndPoint point = new IPEndPoint（ip Convert.ToInt32（txt_port.Text））;

                socketSend.Connect（point）;
                ShowMsg（“连接成功!“）;
                //开启新的线程，不停的接收服务器发来的消息
                Thread c_thread = new Thread（Received）;
                c_thread.IsBackground = true;
                c_thread.Start（）;
            }
            catch （Exception）
            {
                ShowMsg（“IP或者端口号错误...“）;
            }

        }
        void ShowMsg（string str）
        {
            textBox1.AppendText（str + “\r\n“）;
        }
        /// 

        /// 接收服务端返回的消息
        /// 

        void Received（）
        {
            while （true）
            {
                try
                {
                    byte[] buffer = new byte[1024 * 1024 * 3];
                    //实际接收到的有效字节数
                    int len = socketSend.Receive（buffer）;
                    if （len == 0）
                    {
                        break;
                    }
                    string str = Encoding.UTF8.GetString（buffer 0 len）;
                    ShowMsg（socketSend.RemoteEndPoint + “:“ + str）;
                }
                catch { }
            }
        }
        /// 

        /// 向服务器发送消息
        /// 

        /// 
        /// 
        private void bt_send_Click（object sender EventArgs e）
        {
            try
            {
                string msg = txt_msg.Text.Trim（）;
                byte[] buffer = new byte[1024 * 1024 * 3];
                buffer = Encoding.UTF8.GetBytes（msg）;
                socketSend.Send（buffer）;
            }
            catch { }
        }

        private void Form1_Load（object sender EventArgs e）
        {
            Control.CheckForIllegalCrossThreadCalls = false;
        }
    }
}

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

     文件      10752  2018-08-17 10:35  socket_TCP\Client\Client\Client\bin\Debug\Client.exe

     文件      22016  2018-08-17 10:35  socket_TCP\Client\Client\Client\bin\Debug\Client.pdb

     文件      11600  2018-08-17 10:34  socket_TCP\Client\Client\Client\bin\Debug\Client.vshost.exe

     文件        490  2012-06-06 02:06  socket_TCP\Client\Client\Client\bin\Debug\Client.vshost.exe.manifest

     文件       3671  2018-08-17 10:33  socket_TCP\Client\Client\Client\Client.csproj

     文件       2843  2018-08-17 10:35  socket_TCP\Client\Client\Client\Form1.cs

     文件       6384  2018-08-17 10:35  socket_TCP\Client\Client\Client\Form1.Designer.cs

     文件       5817  2018-08-17 10:35  socket_TCP\Client\Client\Client\Form1.resx

     文件        631  2018-08-17 10:35  socket_TCP\Client\Client\Client\obj\x86\Debug\Client.csproj.FileListAbsolute.txt

     文件        975  2018-08-17 10:35  socket_TCP\Client\Client\Client\obj\x86\Debug\Client.csproj.GenerateResource.Cache

     文件      10752  2018-08-17 10:35  socket_TCP\Client\Client\Client\obj\x86\Debug\Client.exe

     文件        180  2018-08-17 10:35  socket_TCP\Client\Client\Client\obj\x86\Debug\Client.Form1.resources

     文件      22016  2018-08-17 10:35  socket_TCP\Client\Client\Client\obj\x86\Debug\Client.pdb

     文件        180  2018-08-17 10:35  socket_TCP\Client\Client\Client\obj\x86\Debug\Client.Properties.Resources.resources

     文件       2867  2018-08-17 10:31  socket_TCP\Client\Client\Client\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

     文件       6356  2018-08-17 10:35  socket_TCP\Client\Client\Client\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件        487  2018-08-17 10:31  socket_TCP\Client\Client\Client\Program.cs

     文件       1362  2018-08-17 10:31  socket_TCP\Client\Client\Client\Properties\AssemblyInfo.cs

     文件       2864  2018-08-17 10:31  socket_TCP\Client\Client\Client\Properties\Resources.Designer.cs

     文件       5612  2018-08-17 10:31  socket_TCP\Client\Client\Client\Properties\Resources.resx

     文件       1093  2018-08-17 10:31  socket_TCP\Client\Client\Client\Properties\Settings.Designer.cs

     文件        249  2018-08-17 10:31  socket_TCP\Client\Client\Client\Properties\Settings.settings

     文件        860  2018-08-17 10:31  socket_TCP\Client\Client\Client.sln

    ..A..H.     19456  2018-08-17 10:35  socket_TCP\Client\Client\Client.suo

     文件      11264  2018-08-17 10:35  socket_TCP\Sever\Sever\Sever\bin\Debug\Sever.exe

     文件      24064  2018-08-17 10:35  socket_TCP\Sever\Sever\Sever\bin\Debug\Sever.pdb

     文件      11600  2018-08-17 10:34  socket_TCP\Sever\Sever\Sever\bin\Debug\Sever.vshost.exe

     文件        490  2012-06-06 02:06  socket_TCP\Sever\Sever\Sever\bin\Debug\Sever.vshost.exe.manifest

     文件       3714  2018-08-17 10:35  socket_TCP\Sever\Sever\Sever\Form1.cs

     文件       6435  2018-08-17 10:35  socket_TCP\Sever\Sever\Sever\Form1.Designer.cs

............此处省略43个文件信息