87,903
社区成员
发帖
与我相关
我的任务
分享
```
// 点击 form-item 时为其添加className
var component = document.querySelector('.component-config-input-form')
var elements = component.getElementsByClassName('el-form-item')
Array.from(elements).forEach(elem => {
if (!elem.addEventListener) return
elem.addEventListener('click', event => {
if (!event.target.classList.contains('form-item-noselect')) {
this.initFormItemClassName()
event.target.classList.add('form-item-selected')
}
})
})
```
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
.current{
color:#F00;
}
</style>
</head>
<body>
<ul>
<li class="current"><a href="index.jsp">首页</a></li>
<li><a href="user.jsp">用户</a></li>
<li><a href="product.jsp">商品</a></li>
<li><a href="searchOrder">订单</a></li>
<li><a href="loadMessage">留言</a></li>
<li><a href="loadNews">新闻</a></li>
</ul>
</body>
<script type="text/javascript">
window.onload=function(){
var current=document.getElementsByTagName('li')[0];
document.body.onclick=function(e){
var a=e||window.event;
var src=a.srcElement||a.target;
src=src.parentNode;
if(src.tagName.toLowerCase()=='li'){
if(current){
current.className='';
}
current=src;
src.className='current';
if(a.preventDefault){
a.preventDefault();
}else{
a.returnValue=false;
}
}
}
}
</script>
</html>
<script type="text/javascript">
$('li').click(function(event) {
/* Act on the event */
$('li').removeClass('current');
$(this).addClass('current');
});
</script>