怎么用$(this)操作获取input的id为name的上级div的id名称？还有在同级span里插一组字符串？
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>Untitled Document</title>
<script src="jquery.js"></script>
</head>
<body>
<script type="text/javascript" language="javascript">
$(function(){
$('form :input').keyup(function () {
$(this).??? //用这个怎么获取input的id为name的上级div的id名称？还有同级span里插一组字符串？
});
});
</script>
<form>
<div id="div1">
<input id="name" type="text" />
<span></span>
</div>
<div id="div2">
<input id="age" type="text" />
<span></span>
</div>
</form>
</body>
</html>
谢谢各位帮忙
