C#下载器调试模式正常，独立运行生成0字节文件且提示系统不兼容

我开发了一个小型C#下载器，用于下载Python安装包，后续会扩展更多功能。目前遇到问题：在Visual Studio调试模式下，下载功能正常；但直接运行Debug文件夹中的exe文件时，虽能加载更新界面，却生成0字节的文件，且尝试运行该文件时提示“此程序与你的操作系统不兼容”。

相关代码 #

private string GetFileName(string url)
{
    string[] parts = url.Split('/');
    string fileName = "";

    if (parts.Length > 0)
        fileName = parts[parts.Length - 1];
    else
        fileName = url;
    return fileName;
}

private String getFileName(string url)
{
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    string fileName = "";
    try
    {

        HttpWebResponse res = (HttpWebResponse)request.GetResponse();
        using (Stream rstream = res.GetResponseStream())
        {
            fileName = res.Headers["Content-Disposition"] != null ?
               res.Headers["Content-Disposition"].Replace("attachment; filename=", "").Replace("\"", "") :
               res.Headers["Location"] != null ? Path.GetFileName(res.Headers["Location"]) :
               Path.GetFileName(url).Contains('?') || Path.GetFileName(url).Contains('=') ?
               Path.GetFileName(res.ResponseUri.ToString()) : GetFileName(url);
        }
        res.Close();
    }
    catch { }

    return fileName;
}



public async Task downloadupdate()
{


    if(os == "x86")
    {
        filename = getFileName("https://www.python.org/ftp/python/3.11.0/python-3.11.0-amd64.exe");
        string url = "https://www.python.org/ftp/python/3.11.0/python-3.11.0-amd64.exe";

        lblfilename.Text = "File Name: " + getFileName(url);
        using (WebClient wc = new WebClient())
        {
            wc.DownloadFileCompleted += wc_completed;
            wc.DownloadProgressChanged += wc_DownloadProgressChanged;
            XtraMessageBox.Show(filename);
            filename = "python.exe";
            wc.DownloadFileAsync(new Uri(url), "C://Temp" + "//" + filename);
        }
    }
    else
    {
        filename = getFileName("https://www.python.org/ftp/python/3.11.0/python-3.11.0.exe");
        string url = "https://www.python.org/ftp/python/3.11.0/python-3.11.0.exe";

        lblfilename.Text = "File Name: " + getFileName(url);
        using (WebClient wc = new WebClient())
        {
            wc.DownloadFileCompleted += wc_completed;
            wc.DownloadProgressChanged += wc_DownloadProgressChanged;
            wc.DownloadFileAsync(new Uri(url), "C://Temp" + "//" + filename);
        }
    }


}


private void wc_completed(object sender, AsyncCompletedEventArgs e)
{
    _MessageResult.Instance.Append("Download Completed!");
    //unzipupdate(Tiaga_Res.unzipupdate = "fixes19.zip");
    //DirectoryCopy(Tiaga_Res.startpath + "\\fixes19\\", Tiaga_Res._bo3_root, true);
    //XtraMessageBox.Show("Applied Fix Aug And Reflex Sight Fix");
    // richTextBox1.Text = _MessageResult.Instance.Merge();
    Process.Start("C://Temp" + "//" + filename);
    this.Close();
}

void wc_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
{
    progressBarControl1.Properties.Step = 1;
    progressBarControl1.Properties.PercentView = true;
    //progressBarControl1.Properties.Maximum = e.ProgressPercentage;
    progressBarControl1.PerformStep();
    UpdateProgressBar(e.ProgressPercentage);
    txtpercent.Text = e.ProgressPercentage + "%";

    double bytesIn = double.Parse(e.BytesReceived.ToString());
    double totalBytes = double.Parse(e.TotalBytesToReceive.ToString());
    lbldownloaded.Text = "Downloaded: " + bytesIn + "/" + totalBytes;
}

private void UpdateProgressBar(int value)
{
    progressBarControl1.EditValue = value;
}

调试模式截图 #

• 调试模式下文件名生成：
  
• 调试模式下文件下载中：
  
• 独立运行模式下文件运行失败：
  

我认为不是libz的问题，因为我一直用它编译DLL到项目中，从未出现过此类问题。

内容的提问来源于stack exchange，提问作者elfenliedtopfan5