code: function _gotoTry (list, ext, callback) {
        if (Tool.isArray(list) && list.length > 0) {
          var ele = list[0];
          _tryLoad(ele.path, ele.key, ext, function (cb) {
            var newLangFileList = list.splice(1);
            _gotoTry(newLangFileList, ext, cb);
          }, callback);
        } else {
          console.warn('[x] language list length is 0 or not a array. TYPE=' + Tool.getType(list));
        }
      }
docs: [gotoTry 尝试]
  @param  {[type]}   list     [文件对象列表]
  @param  {[type]}   ext      [扩展名]
  @param  {Function} callback [成功回调]
  @return {[type]}            [description]