下载多个文件.NET核心Web API作为ArchiveZip返回根目录

using Microsoft.AspNetCore.Mvc;
using System.IO;
using System.IO.Compression;
using System.Linq;

[ApiController]
[Route("[controller]")]
public class FileDownloadController : ControllerBase
{
    private readonly string _fileDirectory = Path.Combine(Directory.GetCurrentDirectory(), "Files");

    [HttpGet("download")]
    public IActionResult DownloadFiles()
    {
        var files = Directory.GetFiles(_fileDirectory).Select(Path.GetFileName).ToArray();
        var memoryStream = new MemoryStream();
        using (var archiveStream = new ZipArchive(memoryStream, ZipArchiveMode.Create, true))
        {
            foreach (var file in files)
            {
                var filePath = Path.Combine(_fileDirectory, file);
                var entry = archiveStream.CreateEntry(file);
                using (var entryStream = entry.Open())
                {
                    using (var fileStream = File.OpenRead(filePath))
                    {
                        fileStream.CopyTo(entryStream);
                    }
                }
            }
        }

        memoryStream.Position = 0;
        return File(memoryStream, "application/zip", "download.zip");
    }
}