<!doctype html>
<html>
<head>
<meta charset="utf-8">
<script src="jquery-1.11.2.js"></script>
<script>
$(function ()
{
$('#div1').css('background','red');
$('#div1').click(function ()
{
$(this).html('hello');
}) $('li').filter('[title = box]').css('background','green');
$('#div1').attr('title','123');
})
</script>
<title>无标题文档</title>
</head> <body>
<div id="div1">div1</div>
<ul>
<li>1</li>
<li title="box">2</li>
<li title="box">3</li>
<li>4</li>
</ul>
</body>
</html>