<script>
var uid = document.getElementById("ulbox");
uid.onclick = function (e) {//使用事件委托给父类执行点击事件
var ele = e.target;
for (var i = 0; i < uid.children.length; i++) {
uid.children[i].className = "";
uid.children[i].lastElementChild.removeAttribute("checked");
}
while (ele.nodeName.toLowerCase() != "div") {//当点击的是a标签内部任意标签，利用冒泡
if (ele.nodeName.toLowerCase() == "a") {
break;
}
var ele = e.target.parentNode;
}
if (ele.nodeName.toLowerCase() != "div") {
ele.className = "xxxx";
ele.lastElementChild.setAttribute("checked","checked");
}
}
</script>
