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?BMPChangeJPG
{
????public?partial?class?Frm_Main?:?Form
????{
????????Bitmap?bitmap;//定義Bitmap類
????????public?Frm_Main（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?buttonOpen_Click（object?sender?EventArgs?e）
????????{
????????????OpenFileDialog?openFileDialog?=?new?OpenFileDialog（）;		//實(shí)例化OpenFileDialog類
????????????openFileDialog.Filter?=?“*.bmp|*.bmp“;						//設(shè)置文件類型
????????????openFileDialog.title?=?“打開(kāi)圖像文件“;						//設(shè)置“打開(kāi)文件”對(duì)話框的標(biāo)題
????????????openFileDialog.Multiselect?=?false;							//只能

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-05-20?07:02??BMPChangeJPG\
?????文件?????????926??2013-05-20?07:02??BMPChangeJPG.sln
?????文件???????18944??2010-11-04?01:45??BMPChangeJPG.suo
?????目錄???????????0??2011-12-22?23:11??BMPChangeJPG\bin\
?????目錄???????????0??2011-12-22?23:13??BMPChangeJPG\bin\Debug\
?????文件????????3839??2010-11-04?01:44??BMPChangeJPG\BMPChangeJPG.csproj
?????文件?????????452??2013-05-20?07:02??BMPChangeJPG\BMPChangeJPG.csproj.user
?????文件????????4619??2010-07-13?00:13??BMPChangeJPG\Frm_Main.cs
?????文件????????7112??2010-07-08?21:48??BMPChangeJPG\Frm_Main.designer.cs
?????文件????????5814??2010-07-08?21:48??BMPChangeJPG\Frm_Main.resx
?????目錄???????????0??2011-12-22?23:11??BMPChangeJPG\obj\
?????目錄???????????0??2011-12-22?23:14??BMPChangeJPG\obj\Debug\
?????文件????????2236??2010-11-04?01:44??BMPChangeJPG\obj\Debug\BMPChangeJPG.csproj.FileListAbsolute.txt
?????目錄???????????0??2011-12-22?23:11??BMPChangeJPG\obj\Debug\Refactor\
?????目錄???????????0??2011-12-22?23:11??BMPChangeJPG\obj\Debug\TempPE\
?????文件?????????496??2010-07-08?21:48??BMPChangeJPG\Program.cs
?????目錄???????????0??2011-12-22?23:11??BMPChangeJPG\Properties\
?????文件????????1356??2010-07-08?21:48??BMPChangeJPG\Properties\AssemblyInfo.cs
?????文件????????2874??2010-07-08?21:48??BMPChangeJPG\Properties\Resources.Designer.cs
?????文件????????5612??2010-07-08?21:48??BMPChangeJPG\Properties\Resources.resx
?????文件????????1097??2010-07-08?21:48??BMPChangeJPG\Properties\Settings.Designer.cs
?????文件?????????249??2010-07-08?21:48??BMPChangeJPG\Properties\Settings.settings