Html5 02(new-selectors、Element.classList、history-api、cache离线访问、web-storage数据存储、file-api、drag&drop拖放操作) new-selectors varitems = document.querySelectorAll('ul > .item'); console.log(items);for(vari = 0; i < items.length; i++) { items[i].addEventListener('click',functio...