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;
using?System.IO;

namespace?ClientServer
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????Socket?socket;
????????private?void?btStart_Click（object?sender?EventArgs?e）
????????{
????????????try
????????????{
????????????????socket?=?new?Socket（AddressFamily.InterNetwork?SocketType.Stream?ProtocolType.Tcp）;
????????????????IPAddress?ip?=?IPAddress.Parse（tb1.Text）;
????????????????IPEndPoint?point?=?new?IPEndPoint（ip?Convert.ToInt32（tb2.Text））;
????????????????socket.Connect（point）;
????????????????if?（socket.IsBound）
????????????????{
????????????????????ShowMsg（“連接成功“）;
????????????????}
????????????????Thread?th?=?new?Thread（Receive）;
????????????????th.IsBackground?=?true;
????????????????th.Start（）;
????????????}
????????????catch?{?}
???????????
????????}
????????private?void?ShowMsg（string?str）?
????????{
????????????tbx1.AppendText（str?+?“\r\n“）;
????????}

????????private?void?btSend_Click（object?sender?EventArgs?e）
????????{
????????????try
????????????{
????????????????string?str?=?tbx2.Text.ToString（）.Trim（）;

????????????????byte[]?buffer?=?System.Text.Encoding.UTF8.GetBytes（str）;

????????????????socket.Send（buffer）;
????????????????tbx2.Text?=?““;
????????????????ShowMsg（“我:“?+?str）;
????????????}
????????????catch?{?}
???????????
????????}
????????private?void?Receive（）?
????????{
????????????while?（true）?
????????????{
????????????????try?
????????????????{
????????????????????byte[]?buffer?=?new?byte[1024?*?1024?*?2];
????????????????????int?r?=?socket.Receive（buffer）;
????????????????????if?（r?==?0）?{?break;?}
????????????????????if（buffer[0]==0）
????????????????????{
??????????????????????
????????????????????????string?str?=?Encoding.UTF8.GetString（buffer?1?r-1）;
????????????????????????ShowMsg（socket.RemoteEndPoint.ToString（）?+?“:“?+?str）;
????????????????????}else?if（buffer[0]==1）
????????????????????{
????????????????????????SaveFileDialog?sfd?=?new?SaveFileDialog（）;
????????????????????????sfd.InitialDirectory?=?@“C:\Users\Administrator\Desktop“;
????????????????????????sfd.title?=?“請選擇保存的文件“;
????????????????????????sfd.Filter?=?“所有文件|*.*“;
????????????????????????sfd.ShowDialog（this）;
????????????????????????string?path?=?sfd.FileName;
????????????????????????using（FileStream?fs=new?FileStream（pathFileMode.OpenOrCreateFileAccess.Write））
????????????????????????{
????????????????????????????fs.Write（buffer1r-1）;

????????????????????????}
????????????????????????MessageBox.Show（“保存成功“）;

????????????????????}
????????????????????else?if?（buffer[0]?==?2）
????????????????????{

????????????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????11264??2015-04-24?20:45??網絡編程\ClientServer\bin\Debug\ClientServer.exe

?????文件??????28160??2015-04-24?20:45??網絡編程\ClientServer\bin\Debug\ClientServer.pdb

?????文件??????11600??2015-04-24?20:46??網絡編程\ClientServer\bin\Debug\ClientServer.vshost.exe

?????文件????????490??2013-06-18?20:28??網絡編程\ClientServer\bin\Debug\ClientServer.vshost.exe.manifest

?????文件???????3683??2015-04-24?18:44??網絡編程\ClientServer\ClientServer.csproj

?????文件???????3601??2015-04-24?20:45??網絡編程\ClientServer\Form1.cs

?????文件???????5202??2015-04-24?20:45??網絡編程\ClientServer\Form1.Designer.cs

?????文件???????5817??2015-04-24?20:45??網絡編程\ClientServer\Form1.resx

?????文件????????603??2015-04-24?20:46??網絡編程\ClientServer\obj\x86\Debug\ClientServer.csproj.FileListAbsolute.txt

?????文件????????975??2015-04-24?20:45??網絡編程\ClientServer\obj\x86\Debug\ClientServer.csproj.GenerateResource.Cache

?????文件??????11264??2015-04-24?20:45??網絡編程\ClientServer\obj\x86\Debug\ClientServer.exe

?????文件????????180??2015-04-24?20:45??網絡編程\ClientServer\obj\x86\Debug\ClientServer.Form1.resources

?????文件??????28160??2015-04-24?20:45??網絡編程\ClientServer\obj\x86\Debug\ClientServer.pdb

?????文件????????180??2015-04-24?18:44??網絡編程\ClientServer\obj\x86\Debug\ClientServer.Properties.Resources.resources

?????文件???????6326??2015-04-24?20:45??網絡編程\ClientServer\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件????????493??2015-04-24?18:29??網絡編程\ClientServer\Program.cs

?????文件???????1356??2015-04-24?18:29??網絡編程\ClientServer\Properties\AssemblyInfo.cs

?????文件???????2876??2015-04-24?18:29??網絡編程\ClientServer\Properties\Resources.Designer.cs

?????文件???????5612??2015-04-24?18:29??網絡編程\ClientServer\Properties\Resources.resx

?????文件???????1099??2015-04-24?18:29??網絡編程\ClientServer\Properties\Settings.Designer.cs

?????文件????????249??2015-04-24?18:29??網絡編程\ClientServer\Properties\Settings.settings

?????文件??????12800??2015-04-24?20:46??網絡編程\網絡編程\bin\Debug\網絡編程.exe

?????文件??????28160??2015-04-24?20:46??網絡編程\網絡編程\bin\Debug\網絡編程.pdb

?????文件??????11600??2015-04-24?20:47??網絡編程\網絡編程\bin\Debug\網絡編程.vshost.exe

?????文件????????490??2013-06-18?20:28??網絡編程\網絡編程\bin\Debug\網絡編程.vshost.exe.manifest

?????文件???????4716??2015-04-24?20:46??網絡編程\網絡編程\Form1.cs

?????文件???????6795??2015-04-24?20:41??網絡編程\網絡編程\Form1.Designer.cs

?????文件???????5817??2015-04-24?20:41??網絡編程\網絡編程\Form1.resx

?????文件???????2867??2015-04-24?16:34??網絡編程\網絡編程\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????6326??2015-04-24?20:46??網絡編程\網絡編程\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

............此處省略35個文件信息