//文件夹路径
        string fulpath = Application.streamingAssetsPath + "/myy/";
        string fulpath1 = Application.streamingAssetsPath + "/photo/ui/";
//判断文件夹存不存在,不存在就创建
        if (!Directory.Exists(fulpath))
        {
            Directory.CreateDirectory(fulpath);
            Directory.CreateDirectory(fulpath1);
        }

  if (Directory.Exists(fullPath))
        {  //按钮           
            DirectoryInfo direction = new DirectoryInfo(fullPath);
            FileInfo[] files = direction.GetFiles("*.xml", SearchOption.AllDirectories);
            //图片
            DirectoryInfo photo = new DirectoryInfo(fullPathPhoto);
            FileInfo[] fileoto = photo.GetFiles("*.png", SearchOption.AllDirectories);

            // Debug.Log(files.Length);
            for (int i = 0; i < files.Length; i++)
            {
                if (files[i].Name.EndsWith(".meta"))
                {
                    continue;
                }
                //if (fileoto[i].Name.EndsWith(".meta")) {
                //    continue;
                //}
                string str = files[i].Name;
                string clone = ".xml";
                Regex r = new Regex(clone);
                Match m = r.Match(str);
                //图片
                string oto = fileoto[i].Name;
                string clo = ".png";
                Regex ro = new Regex(clo);
                Match mo = ro.Match(oto);
                if (m.Success && mo.Success)
                {
                    str = str.Replace(clone, "");
                    oto = oto.Replace(clo, "");
                  
                }
            }

        
    }