利用ICSharpCode.SharpZipLib進行壓縮

#ZipLib is a Zip, GZip, Tar and BZip2 library written entirely in C# for the .NET platform. It is implemented as an assembly (installable in the GAC), and thus can easily be incorporated into other projects (in any .NET language).#ZipLib was ported from the GNU Classpath ZIP library for use with #Develop (http://www.icsharpcode.net/OpenSource/SD) which needed gzip/zip compression.  Later bzip2 compression and tar archiving was added due to popular demand.
官方下載：http://www.icsharpcode.net/OpenSource/SharpZipLib/Download.aspx
   ZipLib組件與.net自帶的Copression比較，在壓縮方面更勝一籌，經過BZip2壓縮要小很多，親手測試，不信你也可以試一試。而且這個功能更加強大。下面就是個人做的一個小例子，具體的應用程序源碼： /Files/yank/Compress.rar。

using System;
 2using System.Data;
 3using System.IO;
 4using ICSharpCode.SharpZipLib.Zip.Compression;
 5using ICSharpCode.SharpZipLib.Zip.Compression.Streams;
 6using ICSharpCode.SharpZipLib.GZip;
 7
 8/**//// <summary>
 9/// Summary description for ICSharp
10/// </summary>
11public class ICSharp
12{
13    public ICSharp()
14