初识JQuery 实例一 

<!DOCTYPE html>
<html>
<head>
    <style type="text/css">
        .highlight
        {
            background-color: yellow;
        }
        .gray
        {
            background-color: Gray;
        }
    </style>
    <script src="http://code.jquery.com/jquery-1.5.js"></script>
</head>
<body>
    <ul>
        <li>Look:</li>
        <li>This is some text in a paragraph.</li>
        <li>This is a note about it.</li>
    </ul>
    <script type="text/javascript">
        $("ul li").first().addClass('highlight');
        jQuery("ul li").first().next().addClass('gray');
    </script>
</body>
</html>
posted @ 2011-03-15 09:30  任国强  阅读(294)  评论(0)  编辑  收藏  举报