c# 压缩解压代码

转自http://blog.csdn.net/jason_dct/article/details/8567299

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> 1 using System; using System.Collections.Generic;

 using System.IO; using System.IO.Packaging;  public class SharpZip {     private const long BUFFER_SIZE = 4096;      public static void CompressFiles(List<string> fileNames, string zipFileName)     {         foreach (string file in fileNames)         {             CompressFile(zipFileName, file);         }     }      public static void CompressFile(string zipFilename, string fileToAdd)     {

//使用给定的文件模式和文件访问设置打开位于给定路径的包。         using (Package zip = System.IO.Packaging.Package.Open(zipFilename, FileMode.OpenOrCreate))         {             string destFilename = ".\\" + Path.GetFileName(fileToAdd);             Uri uri = PackUriHelper.CreatePartUri(new Uri(destFilename, UriKind.Relative));             if (zip.PartExists(uri))             {                 zip.DeletePart(uri);             }             PackagePart part = zip.CreatePart(uri, "", CompressionOption.Normal);             using (FileStream fileStream = new FileStream(fileToAdd, FileMode.Open, FileAccess.Read))             {                 using (Stream dest = part.GetStream())                 {                     CopyStream(fileStream, dest);                 }             }         }     }      public static void DecompressFile(string zipFilename, string outPath)     {

//使用给定的文件模式和文件访问设置打开位于给定路径的包。         using (Package zip = System.IO.Packaging.Package.Open(zipFilename, FileMode.Open))         {             foreach (PackagePart part in zip.GetParts())             {                 string outFileName = Path.Combine(outPath, part.Uri.OriginalString.Substring(1));                 using (System.IO.FileStream outFileStream = new System.IO.FileStream(outFileName, FileMode.Create))                 {                     using (Stream inFileStream = part.GetStream())                     {                         CopyStream(inFileStream, outFileStream);                     }                 }             }         }     }      private static void CopyStream(System.IO.Stream inputStream, System.IO.Stream outputStream)     {         long bufferSize = inputStream.Length < BUFFER_SIZE ? inputStream.Length : BUFFER_SIZE;         byte[] buffer = new byte[bufferSize];         int bytesRead = 0;         long bytesWritten = 0;         while ((bytesRead = inputStream.Read(buffer, 0, buffer.Length)) != 0)         {             outputStream.Write(buffer, 0, bytesRead);             bytesWritten += bufferSize;         }     } }