jQuery操作属性
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<script src="jquery/jquery-3.1.1.js" type="text/javascript"></script>
<script type="text/javascript" >
$(function(){
$("img").each(function(){
$(this).after("<span>" + $(this).attr("title") + "</span>");
})
})
</script>
<style type="text/css">
img{height:200px; margin:2px;}
</style>
</head>
<body>
<img src="images/1.jpg" title="淘气包" />
<img src="images/2.jpg" title="得意忘形" />
<img src="images/3.jpg" title="快乐宝贝" />
</body>
</html>