Windows mobile 上的文件压缩

using  System;
using  System.Linq;
using  System.Collections.Generic;
using  System.ComponentModel;
using  System.Data;
using  System.Drawing;
using  System.Text;
using  System.Windows.Forms;
using  ICSharpCode.SharpZipLib.Checksums;
using  ICSharpCode.SharpZipLib.Zip;
using  ICSharpCode.SharpZipLib.GZip;
using  System.IO;

namespace  SmartDeviceProject1
{
     public   partial   class  Form1 : Form
    {
         public  Form1()
        {
            InitializeComponent();
        }

         public   void  ZipFile( string  strFile,  string  strZip)
    {
         if  (strFile[strFile.Length  -   1 ]  !=  Path.DirectorySeparatorChar)
            strFile  +=  Path.DirectorySeparatorChar;
        ZipOutputStream s  =   new  ZipOutputStream(File.Create(strZip));
        s.SetLevel( 6 );  //  0 - store only to 9 - means best compression
        zip(strFile, s, strFile);
        s.Finish();
        s.Close();
    }

          private   void  zip( string  strFile, ZipOutputStream s,  string  staticFile)
    {
         if  (strFile[strFile.Length  -   1 ]  !=  Path.DirectorySeparatorChar) strFile  +=  Path.DirectorySeparatorChar;
        Crc32 crc  =   new  Crc32();
         string [] filenames  =  Directory.GetFileSystemEntries(strFile);
         foreach  ( string  file  in  filenames)
        {

             if  (Directory.Exists(file))
            {
                zip(file, s, staticFile);
            }

             else   //  否则直接压缩文件
            {
                 // 打开压缩文件
                FileStream fs  =  File.OpenRead(file);

                 byte [] buffer  =   new   byte [fs.Length];
                fs.Read(buffer,  0 , buffer.Length);
                 string  tempfile  =  file.Substring(staticFile.LastIndexOf( " \\ " )  +   1 );
                ZipEntry entry  =   new  ZipEntry(tempfile);

                entry.DateTime  =  DateTime.Now;
                entry.Size  =  fs.Length;
                fs.Close();
                crc.Reset();
                crc.Update(buffer);
                entry.Crc  =  crc.Value;
                s.PutNextEntry(entry);

                s.Write(buffer,  0 , buffer.Length);
            }
        }
    }
          public   static  String GetCurPath()
         {
              return  System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);
         }



         ///   <summary>
         ///   ////////////////////////////////////////// /
         ///   </summary>
         ///   <param name="sender"></param>
         ///   <param name="e"></param>
         ///  


         public   string  unZipFile( string  TargetFile,  string  fileDir)
    {
         string  rootFile  =   "   " ;
         try
        {
             // 读取压缩文件(zip文件)，准备解压缩
            ZipInputStream s  =   new  ZipInputStream(File.OpenRead(TargetFile.Trim()));
            ZipEntry theEntry;
             string  path  =  fileDir;                   
             // 解压出来的文件保存的路径

             string  rootDir  =   "   " ;                        
             // 根目录下的第一个子文件夹的名称
             while  ((theEntry  =  s.GetNextEntry())  !=   null )
            {
                rootDir  =  Path.GetDirectoryName(theEntry.Name);                          
                 // 得到根目录下的第一级子文件夹的名称
                 if  (rootDir.IndexOf( " \\ " )  >=   0 )
                {
                    rootDir  =  rootDir.Substring( 0 , rootDir.IndexOf( " \\ " )  +   1 );
                }
                 string  dir  =  Path.GetDirectoryName(theEntry.Name);                    
                 // 根目录下的第一级子文件夹的下的文件夹的名称
                 string  fileName  =  Path.GetFileName(theEntry.Name);                    
                 // 根目录下的文件名称
                 if  (dir  !=   "   "  )                                                        
                     // 创建根目录下的子文件夹,不限制级别
                {
                     if  ( ! Directory.Exists(fileDir  +   " \\ "   +  dir))
                    {
                        path  =  fileDir  +   " \\ "   +  dir;                                                
                         // 在指定的路径创建文件夹
                        Directory.CreateDirectory(path);
                    }
                }
                 else   if  (dir  ==   "   "   &&  fileName  !=   "" )                                              
                     // 根目录下的文件
                {
                    path  =  fileDir;
                    rootFile  =  fileName;
                }
                 else   if  (dir  !=   "   "   &&  fileName  !=   "" )                                              
                     // 根目录下的第一级子文件夹下的文件
                {
                     if  (dir.IndexOf( " \\ " )  >   0 )                                                            
                         // 指定文件保存的路径
                    {
                        path  =  fileDir  +   " \\ "   +  dir;
                    }
                }

                 if  (dir  ==  rootDir)                                                                                  
                     // 判断是不是需要保存在根目录下的文件
                {
                    path  =  fileDir  +   " \\ "   +  rootDir;
                }

                 // 以下为解压缩zip文件的基本步骤
                 // 基本思路就是遍历压缩文件里的所有文件，创建一个相同的文件。
                 if  (fileName  !=  String.Empty)
                {
                    FileStream streamWriter  =  File.Create(path  +   " \\ "   +  fileName);

                     int  size  =   2048 ;
                     byte [] data  =   new   byte [ 2048 ];
                     while  ( true )
                    {
                        size  =  s.Read(data,  0 , data.Length);
                         if  (size  >   0 )
                        {
                            streamWriter.Write(data,  0 , size);
                        }
                         else
                        {
                             break ;
                        }
                    }

                    streamWriter.Close();
                }
            }
            s.Close();

             return  rootFile;
        }
         catch  (Exception ex)
        {
             return   " 1;  "   +  ex.Message;
        }
    }   



         //////////////////////////////////////////////////////

          private   void  Form1_Load( object  sender, EventArgs e)
         {
            

         }

          private   void  button1_Click( object  sender, EventArgs e)
         {
              string [] FileProperties  =   new   string [ 2 ];
             FileProperties[ 0 ]  =  Form1.GetCurPath()  +   " \\zip\\ " ; // 待压缩文件目录
             FileProperties[ 1 ]  =  Form1.GetCurPath()  +   " \\mao\\a.zip " ;   // 压缩后的目标文件
             Form1 Zc  =   new  Form1();
             Zc.ZipFile(FileProperties[ 0 ], FileProperties[ 1 ]);
             MessageBox.Show( " OK " );
         }

          private   void  button2_Click( object  sender, EventArgs e)
         {
             string [] FileProperties  =   new   string [ 2 ];
            FileProperties[ 0 ]  =  Form1.GetCurPath()  +   " \\mao\\a.zip " ; // 待压缩文件目录
            FileProperties[ 1 ]  =  Form1.GetCurPath()  +   " \\ " ;   // 压缩后的目标文件
            Form1 UnZc  =   new  Form1();
            UnZc.unZipFile(FileProperties[ 0 ], FileProperties[ 1 ]);
            MessageBox.Show( " OK " );

         }


    }
}

/Files/tt_mc/SmartDeviceProject1.rar