C#压缩文件夹

using System;
using System.Collections.Generic;
using System.Text;

///第三方dll
using ICSharpCode.SharpZipLib;
using ICSharpCode.SharpZipLib.Checksums;
using ICSharpCode.SharpZipLib.Zip;
using System.IO;
using log4net;
using log4net.Config;
using System.Text.RegularExpressions;

namespace Test.BLL
{
public class TestZipFile
{
protected static readonly ILog logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

/// <summary>
/// 加密压缩包的方法
/// </summary>
/// <param name="strFile"></param>
/// <param name="strZip"></param>
/// <param name="sPassWord"></param>
public void ZipFile(string strFile, string strZip, string sPassWord)
{
if (strFile[strFile.Length - 1] != Path.DirectorySeparatorChar)
strFile += Path.DirectorySeparatorChar;
ZipOutputStream s = new ZipOutputStream(File.Create(strZip));
if (sPassWord != "")
{
s.Password = sPassWord; //Zip压缩文件密码
}
s.SetLevel(6);
zip(strFile, s, strFile);
s.Finish();
s.Close();
}
/// <summary>
/// 压缩文件夹
/// </summary>
/// <param name="strFile"></param>
/// <param name="strZip"></param>
/// <param name="sPassWord"></param>
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);
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);
}
}
}

}
}