private void SetReadOnly(string dirPath)
        {
            string[] dirPathes = Directory.GetDirectories(dirPath, "*.*", SearchOption.AllDirectories);
            string[] filePathes = Directory.GetFiles(dirPath, "*.*", SearchOption.AllDirectories);
            foreach (var dp in dirPathes)
            {
                DirectoryInfo dir = new DirectoryInfo(dirPath);
                dir.Attributes = FileAttributes.Normal & FileAttributes.Directory;
            }
            foreach (var fp in filePathes)
            {
                File.SetAttributes(fp, System.IO.FileAttributes.Normal);
            }
        }