:last-child
匹配集合中子集里的最后一个元素。返回匹配元素集合
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
$(document).ready(function(){
$("div span:last-child")
.css({color:"red", fontSize:"80%"})
.hover(function () {
$(this).addClass("solast");
}, function () {
$(this).removeClass("solast");
});
});
</script>
<style>
span.solast { text-decoration:line-through; }
</style>
</head>
<body>
<div>
<span>John,</span>
<span>Karl,</span>
<span>Brandon,</span>
<span>Sam</span>
</div>
<div>
<span>Glen,</span>
<span>Tane,</span>
<span>Ralph,</span>
<span>David</span>
</div>
</body>
</html>
$("div span:last-child")
匹配div包含span元素的span元素集合中的最后一个元素(子集中的最后一个元素)。以下是匹配元素集合
<span>Sam</span>
<span>David</span>