C# -将同一目录压缩两次-不同的哈希值

using System;
using System.IO;
using System.IO.Compression;

public class Program
{
    public static void Main()
    {
        string directoryPath = "目录路径";
        string firstZipFilePath = "第一次压缩的文件路径";
        string secondZipFilePath = "第二次压缩的文件路径";

        // 第一次压缩
        ZipDirectory(directoryPath, firstZipFilePath);

        // 解压缩到临时目录
        string tempDirectoryPath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
        UnzipFile(firstZipFilePath, tempDirectoryPath);

        // 第二次压缩
        ZipDirectory(tempDirectoryPath, secondZipFilePath);

        // 删除临时目录
        Directory.Delete(tempDirectoryPath, true);

        // 输出两次压缩文件的哈希值
        Console.WriteLine("第一次压缩文件的哈希值：" + GetFileHash(firstZipFilePath));
        Console.WriteLine("第二次压缩文件的哈希值：" + GetFileHash(secondZipFilePath));
    }

    private static void ZipDirectory(string directoryPath, string zipFilePath)
    {
        using (var zipArchive = ZipFile.Open(zipFilePath, ZipArchiveMode.Create))
        {
            foreach (string filePath in Directory.GetFiles(directoryPath, "*", SearchOption.AllDirectories))
            {
                zipArchive.CreateEntryFromFile(filePath, GetRelativePath(directoryPath, filePath));
            }
        }
    }

    private static void UnzipFile(string zipFilePath, string extractPath)
    {
        ZipFile.ExtractToDirectory(zipFilePath, extractPath);
    }

    private static string GetRelativePath(string basePath, string filePath)
    {
        Uri baseUri = new Uri(basePath);
        Uri fileUri = new Uri(filePath);
        return Uri.UnescapeDataString(baseUri.MakeRelativeUri(fileUri).ToString());
    }

    private static string GetFileHash(string filePath)
    {
        using (var stream = File.OpenRead(filePath))
        {
            using (var sha256 = System.Security.Cryptography.SHA256.Create())
            {
                byte[] hashBytes = sha256.ComputeHash(stream);
                return BitConverter.ToString(hashBytes).Replace("-", string.Empty);
            }
        }
    }
}