/*
 * 获取事件冒泡路径，兼容ie11,edge,chrome,firefox,safari
 * @param evt
 * @returns {*} 由dom元素组成的数组[span,div,...,Window]
 */
  function eventPath(evt) {
      const path = (evt.composedPath && evt.composedPath()) || evt.path,
      target = evt.target;

      if (path != null) {
          return (path.indexOf(window) < 0) ? path.concat(window) : path;
      }

      if (target === window) {
          return [window];
      }

      return [target].concat(getParents(target), window);
    };

  /*
 * 获取父节点
 * @param node，memo
 * @returns {*}
 */
    function getParents(node, memo) {
        memo = memo || [];
        const parentNode = node.parentNode;

        if (!parentNode) {
            return memo;
        } else {
            return getParents(parentNode, memo.concat(parentNode));
        }
    };