code: function all(sl, context) {
      var nodeList;
      if (supportQuerySelector && !nes.debug) {
        try {
          nodeList = toArray((context || doc).querySelectorAll(sl));
        } catch (e) {
          nodeList = get(sl, context);
        }
      } else {
        nodeList = get(sl, context);
      }
      return nodeList;
    }
docs: API2——__all__ ------------------------------- 对应标准的querySelectorAll方法