C# 解压及压缩文件源码

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using System.IO;using System.Windows.Forms;using ICSharpCode.SharpZipLib.Zip;using ICSharpCode.SharpZipLib.Checksums;   public void unZip(string strSouceFile, string strDestFile)        {            if (!Directory.Exists(strDestFile))                Directory.CreateDirectory(strDestFile);            using (ZipInputStream zip = new ZipInputStream(File.OpenRead(strSouceFile)))            {                ZipEntry theEntry;                string fileName;                FileStream streamWriter;                while ((theEntry = zip.GetNextEntry()) != null)                {                    fileName = Path.GetFileName(theEntry.Name);                    if (fileName != String.Empty)                    {                        streamWriter = new FileStream(strDestFile + fileName, FileMode.Create, FileAccess.Write, FileShare.Read | FileShare.Write);                        int size = 2048;                        byte[] data = new byte[2048];                        while (true)                        {                            size = zip.Read(data, 0, data.Length);                            if (size > 0)                            {                                streamWriter.Write(data, 0, size);                            }                            else                            {                                break;                            }                        }                        streamWriter.Close();                    }                }                MessageBox.Show("解压文件成功！","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);            }        }        public void ZipFile(string strSouceFile, string strDestFile)        {            using (ZipOutputStream stream = new ZipOutputStream(File.Create(strDestFile)))            {                stream.SetLevel(5);                byte[] buffer = new byte[0x1000];                ZipEntry entry = new ZipEntry(Path.GetFileName(strSouceFile));                entry.DateTime = DateTime.Now;                stream.PutNextEntry(entry);                using (FileStream stream2 = File.OpenRead(strSouceFile))                {                    int num;                    do                    {                        num = stream2.Read(buffer, 0, buffer.Length);                        stream.Write(buffer, 0, num);                    }                    while (num > 0);                    MessageBox.Show("压缩文件成功！");                }                stream.Finish();                stream.Close();            }        }
需要引用的dll,下载以下页面的dll
http://download.csdn.net/detail/sky_cat/7236675
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