<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script></script>
</head>
<body>
<div id='plant' data-fruit='12'>来呀！ </div>
<script type="text/javascript">
$(function(){
$('#plant').hover(function(){
var f1 = $(this).data('fruit');
var f2 = $(this).attr('data-fruit');
console.log(f1);
console.log(f2);
})
})
</script>
</body>
</html>