1

 // 删除默认
-const clickEvent = (function() {
-    if ('ontouchstart' in document.documentElement === true)
-        return 'touchstart';
-    else
-        return 'click';
-})();
-clickEvent.addEventListener('DOMContentLoaded', function(ev) {
+document.addEventListener('DOMContentLoaded', function(ev) {
     ev.preventDefault();
     // var oUl = document.getElementsById('ad_contentUl')[0];
     var oUl = document.querySelector('#ad_contentUl');