我們 開發時經常會遇到需要壓縮文件的需求，利用C#的開源組件ICSharpCode.SharpZipLib，
就可以很容易的實現壓縮和解壓縮功能.
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c++解壓zip？壓縮文件：
/// <summary> /// 壓縮指定文件生成ZIP文件 /// </summary> /// <param name="topDirName">頂層文件夾名稱</param> /// <param name="fileNamesToZip">待壓縮文件列表</param> /// <param name="ZipedFileName">ZIP文件</param> /// <param name="CompressionLevel">壓縮比</param> /// <param name="password">密碼</param> /// <param name="comment">壓縮文件注釋文字</param> public static void ZipFile(string topDirName, string fileNameToZip, string ZipedFileName, int CompressionLevel, string password, string comment ){var ls = new List<string> { fileNameToZip };ZipFile(topDirName, ls.ToArray(), ZipedFileName, CompressionLevel, password, comment);}/// <summary> /// 壓縮指定文件生成ZIP文件 /// </summary> /// <param name="topDirName">頂層文件夾名稱</param> /// <param name="fileNamesToZip">待壓縮文件列表</param> /// <param name="ZipedFileName">ZIP文件</param> /// <param name="CompressionLevel">壓縮比</param> /// <param name="password">密碼</param> /// <param name="comment">壓縮文件注釋文字</param> public static void ZipFile(string topDirName, string[] fileNamesToZip, string ZipedFileName, int CompressionLevel, string password, string comment ){using (var s = new ZipOutputStream(File.Open(ZipedFileName, FileMode.Create))){if (password != null && password.Length > 0)s.Password = password;if (comment != null && comment.Length > 0)s.SetComment(comment);s.SetLevel(CompressionLevel); // 0 - means store only to 9 - means best compression foreach (string file in fileNamesToZip){using (FileStream fs = File.OpenRead(topDirName + file)){ //打開待壓縮文件 byte[] buffer = new byte[fs.Length];fs.Read(buffer, 0, buffer.Length); //讀取文件流 ZipEntry entry = new ZipEntry(file); //新建實例 entry.DateTime = DateTime.Now;entry.Size = fs.Length;s.PutNextEntry(entry);s.Write(buffer, 0, buffer.Length);}}s.Finish();}}
解壓文件：
/// <summary> /// 解壓縮ZIP文件到指定文件夾 /// </summary> /// <param name="zipfileName">ZIP文件</param> /// <param name="UnZipDir">解壓文件夾</param> /// <param name="password">壓縮文件密碼</param> public static void UnZipFile(string zipfileName, string UnZipDir, string password){using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipfileName))){if (!string.IsNullOrWhiteSpace(password))s.Password = password;try{ZipEntry theEntry;while ((theEntry = s.GetNextEntry()) != null){string directoryName = Path.GetDirectoryName(UnZipDir);string pathname = Path.GetDirectoryName(theEntry.Name);string fileName = Path.GetFileName(theEntry.Name);//生成解壓目錄 pathname = pathname.Replace(":", "$");//處理壓縮時帶有盤符的問題 directoryName = directoryName + "\\" + pathname;Directory.CreateDirectory(directoryName);if (fileName != String.Empty){//解壓文件到指定的目錄 using (var streamWriter = File.Create(directoryName + "\\" + 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.Flush();}}}}catch (Exception eu){throw eu;}}}
本文引用：http://xqblog.top/Article.aspx?id=ART2018030900002
