jquery中closest()方法的详细解释和使用

 $(selector).closest(filter)  

<ul>
    <li><span id="mochu">sdfsdf</span></li>
</ul>
<script>
$('#mochu').closest('ul').css('color','red');
</script>   

<div class="divs">
    <ul>
        <li><span id="mochu">feiniaomy.com</span></li>
        <li><span>我会变成红色</span></li>
        <li><span>汇站网</span></li>
    </ul>
</div>
<script>
$('#mochu').closest('.divs').css('color','red');
</script>   

 <div class="divs">
    <ul>
        <li><span id="mochu">feiniaomy.com</span></li>
        <li><span>我会变成红色</span></li>
        <li><span>汇站网</span></li>
    </ul>
</div>
<script>
$('#mochu').closest('ul').find('li').eq(1).css('color','red');
</script>