Framework4.5支持

引用： System.IO.Compression.dll,System.IO.Compression.FileSystem.dll

提取压缩文件

ZipFile.ExtractToDirectory(@"P:\files.zip", @"P:\files");

提取单个文件

using (ZipArchive zipArchive =   ZipFile.Open(@"P:\files.zip", ZipArchiveMode.Read)){  foreach (ZipArchiveEntry entry in zipArchive.Entries)  {    if (entry.Name == "file.txt") { using (Stream stream = entry.Open()) { ProcessFile(stream); } } } }

创建 .zip 存档

ZipFile.CreateFromDirectory(@"P:\files", @"P:\files.zip");

其他操作，创建压缩包内的目录

IEnumerable
     
       files =   Directory.EnumerateFiles(@"P:\files", "*.cs");using (ZipArchive zipArchive =   ZipFile.Open(@"P:\files.zip", ZipArchiveMode.Create)) { foreach (string file in files) { var entryName = Path.Combine("SourceCode", Path.GetFileName(file)); zipArchive.CreateEntryFromFile(file, entryName); } }
     

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