<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Untitled Document</title>
<link rel="stylesheet" type="text/css" href="css/style.css">
<style type="text/css">
div, span, p {
width: 140px;
height: 140px;
margin: 5px;
background: #aaa;
border: #000 1px solid;
float: left;
font-size: 17px;
font-family: Verdana;
}
div.mini {
width: 55px;
height: 55px;
background-color: #aaa;
font-size: 12px;
}
div.hide {
display: none;
}
</style>
<script type="text/javascript" src="jquery-1.7.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
//选取每个id为two的div父元素下的最后一个子元素.
$("#btn3").click(function(){
$("#two :last-child").css("background", "#ffbbaa");
});
});
</script>
</head>
<body>
<input type="button" value="//选取每个id为two的div父元素下的最后一个子元素." id="btn3"/>
<br><br>
<div class="one" id="one">
id 为 one,class 为 one 的div
<div class="mini">class为mini</div>
</div>
<div class="one" id="two" title="test">
<table><tr><td>1111<td></tr></table>
<table><tr><td>2222<td></tr></table>
</div>
<div class="one" id="id">
id为id11111111111
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini"></div>
</div>
<div class="one">
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini" title="tesst">class为mini,title为tesst</div>
</div>
<div style="display:none;" class="none">style的display为"none"的div</div>
<div class="hide">class为"hide"的div</div>
<div>
包含input的type为"hidden"的div<input type="hidden" value="123456789" size="8">
</div>
<div id="mover">正在执行动画的div元素.</div>
</html>
-----------------------------------------------------
![图片描述][1]
![图片描述][2]
为什么结果如上图片，不应该，只有2222亮才对吗？为什么1111也亮呢？
图片不知道为什么上传不上去
$('#two').find('table:last')你的div.getElementsByTagName("table")[table.length-1]