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压缩包格式，本文主要用于说明如何使用代码 文件或文件夹压缩为 zip压缩包及其解压操作，
下面分两个版本进行实现

1.简单版本

   bool DoCompressDirectoryInfo(string folderPath){try{var zipFilePath = $"{folderPath}.zip";var directoryInfo = new DirectoryInfo(zipFilePath);if (directoryInfo.Exists){directoryInfo.Delete();}if (directoryInfo.Parent != null){directoryInfo = directoryInfo.Parent;}System.IO.Compression.ZipFile.CreateFromDirectory(folderPath, zipFilePath, CompressionLevel.Optimal, false);return true;}catch (Exception ex){_logger.LogError(ex, $"压缩文件失败，{folderPath}！");return false;}}

2.第二种复杂版本

帮助类

class FolderCompressor
{public stati  bool DoCompressDirectoryInfo(string folderPath){try{var zipFilePath = $"{folderPath}.zip";FolderCompressor.CompressFolder(folderPath, zipFilePath);return true;}catch (Exception ex){_logger.LogError(ex, $"压缩文件失败，{folderPath}！");return false;}}public static void CompressFolder(string sourceFolderPath, string destinationZipFilePath){using FileStream zipToOpen = new FileStream(destinationZipFilePath, FileMode.Create);using ZipArchive archive = new ZipArchive(zipToOpen, ZipArchiveMode.Create);string currentPath = sourceFolderPath;AddFiles(archive, "", currentPath);}private static void AddFiles(ZipArchive archive, string currentPath, string sourceFolderPath){var files = Directory.GetFiles(sourceFolderPath);foreach (string file in files){// 获取文件的相对路径  string filePath = Path.GetFullPath(file);string relativePath = filePath.Substring(sourceFolderPath.Length).TrimStart(Path.DirectorySeparatorChar);// 将文件添加到ZIP存档  var readOnlyEntry = archive.CreateEntry(Path.Combine(currentPath, relativePath));using var fileToCompress = File.OpenRead(file);using var entryStream = readOnlyEntry.Open();fileToCompress.CopyTo(entryStream);}// 递归处理子文件夹  string[] directories = Directory.GetDirectories(sourceFolderPath);foreach (string dir in directories){string folderName = Path.GetFileName(dir);AddFiles(archive, Path.Combine(currentPath, folderName), dir);}}
}

调用时候最好用 DoCompressDirectoryInfo方法