获取目录下的子目录以及文件

    string fileInfo = string.Empty;    private void GetAllFiles()    {        if (folderBrowserDialog.ShowDialog() == DialogResult.OK)        {            DirectoryInfo dInfo = new DirectoryInfo(folderBrowserDialog.SelectedPath);            //遍历该文件夹            GetFolder(dInfo);        }        using (System.IO.StreamWriter sw = new StreamWriter   (Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "\\fileInfo.txt", false, Encoding.GetEncoding("gb2312")))        {            sw.Write(fileInfo);            sw.Flush();        }    }    private void GetFolder(DirectoryInfo dInfo)    {        //显示其中文件        GetFile(dInfo);        //遍历文件夹中的文件夹        foreach (DirectoryInfo dir in dInfo.GetDirectories())        {            //递归遍历该文件夹            GetFolder(dir);        }    }    private void GetFile(DirectoryInfo dInfo)    {        //遍历文件夹中的文件        foreach (FileInfo file in dInfo.GetFiles())        {            fileInfo += file.FullName + "\r\n";            Application.DoEvents();        }    }