using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Linq;
using?System.Windows.Forms;
using?System.IO;
using?System.Drawing.Imaging;

namespace?JPGChangeBMP
{
????public?partial?class?Frm_Main?:?Form
????{
????????Bitmap?bitmap;
????????public?Frm_Main（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?buttonOpen_Click（object?sender?EventArgs?e）
????????{
????????????OpenFileDialog?openFileDialog?=?new?OpenFileDialog（）;
????????????openFileDialog.Filter?=?“*.jpg|*.jpg“;
????????????openFileDialog.title?=?“打開圖像文件“;
????????????openFileDialog.Multiselect?=?false;
????????????if?（openFileDialog.ShowDialog（）?==?DialogResult.OK）
????????????{

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2011-12-22?23:11??JPGChangeBMP\
?????文件?????????926??2013-05-20?07:14??JPGChangeBMP.sln
?????文件???????18944??2010-11-04?01:45??JPGChangeBMP.suo
?????目錄???????????0??2011-12-22?23:11??JPGChangeBMP\bin\
?????目錄???????????0??2013-05-20?07:14??JPGChangeBMP\bin\Debug\
?????文件???????11776??2013-05-20?07:14??JPGChangeBMP\bin\Debug\JPGChangeBMP.exe
?????文件???????24064??2013-05-20?07:14??JPGChangeBMP\bin\Debug\JPGChangeBMP.pdb
?????文件????????4038??2010-07-13?00:24??JPGChangeBMP\Frm_Main.cs
?????文件????????7110??2010-07-08?21:50??JPGChangeBMP\Frm_Main.designer.cs
?????文件????????5814??2010-07-08?21:50??JPGChangeBMP\Frm_Main.resx
?????文件????????4028??2013-05-20?07:14??JPGChangeBMP\JPGChangeBMP.csproj
?????目錄???????????0??2011-12-22?23:11??JPGChangeBMP\obj\
?????目錄???????????0??2013-05-20?07:14??JPGChangeBMP\obj\Debug\
?????文件?????????789??2013-05-20?07:14??JPGChangeBMP\obj\Debug\DesignTimeResolveAssemblyReferences.cache
?????文件????????7164??2013-05-20?07:14??JPGChangeBMP\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
?????文件????????3817??2013-05-20?07:14??JPGChangeBMP\obj\Debug\JPGChangeBMP.csproj.FileListAbsolute.txt
?????文件?????????850??2013-05-20?07:14??JPGChangeBMP\obj\Debug\JPGChangeBMP.csproj.GenerateResource.Cache
?????文件????????1757??2013-05-20?07:14??JPGChangeBMP\obj\Debug\JPGChangeBMP.csprojResolveAssemblyReference.cache
?????文件???????11776??2013-05-20?07:14??JPGChangeBMP\obj\Debug\JPGChangeBMP.exe
?????文件?????????180??2013-05-20?07:14??JPGChangeBMP\obj\Debug\JPGChangeBMP.Frm_Main.resources
?????文件???????24064??2013-05-20?07:14??JPGChangeBMP\obj\Debug\JPGChangeBMP.pdb
?????文件?????????180??2013-05-20?07:14??JPGChangeBMP\obj\Debug\JPGChangeBMP.Properties.Resources.resources
?????目錄???????????0??2011-12-22?23:11??JPGChangeBMP\obj\Debug\Refactor\
?????目錄???????????0??2013-05-20?07:14??JPGChangeBMP\obj\Debug\TempPE\
?????文件????????4608??2013-05-20?07:14??JPGChangeBMP\obj\Debug\TempPE\Properties.Resources.Designer.cs.dll
?????文件?????????496??2010-07-08?21:50??JPGChangeBMP\Program.cs
?????目錄???????????0??2011-12-22?23:11??JPGChangeBMP\Properties\
?????文件????????1356??2010-07-08?21:49??JPGChangeBMP\Properties\AssemblyInfo.cs
?????文件????????2864??2013-05-20?07:14??JPGChangeBMP\Properties\Resources.Designer.cs
?????文件????????5612??2010-07-08?21:49??JPGChangeBMP\Properties\Resources.resx
?????文件????????1112??2013-05-20?07:14??JPGChangeBMP\Properties\Settings.Designer.cs
............此處省略1個(gè)文件信息