jquery指定某个子元素排到第一个
<!DOCTYPE html>
<html >
<head>
<meta charset="utf-8">
<script src="../ajax/jquery.js"></script>
</head>
<body>
<div ));
})
</script>
</body>
</html>
<!DOCTYPE html>
<html >
<head>
<meta charset="utf-8">
<script src="../ajax/jquery.js"></script>
</head>
<body>
<div ));
})
</script>
</body>
</html>