大家都知道jQuery是一个框架,它对JS进行了封装,使其更方便使用。前面两篇博文分别是用CSS样式和JS实现的,那么这篇就用jQuery来实现二级下拉式菜单。
使用JQuery实现需要用到的知识有:
第一种方法:将jQuery库下载到电脑上,然后引用,我下载的是jquery-1.7.1.min.js这个版本。
例如:
<script type="text/javascript" src="jquery/jquery-1.7.1.min.js"></script>
第二种方法:直接引用在线服务器上的jQuery库文件,比如谷歌服务器jQuery库,百度服务器jQuery库等。
例如:引用百度服务器上的jQuery库文件
<script type="text/javascript" src="jquery/1.9.0/jquery.js"></script>
接下来看看制作的流程:
先来看看效果图:
最后我们来看看代码的情况,和前面的区别不大:
HTML代码:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta
http-equiv="Content-Type"
content="text/html; charset=gb2312" />
<title>下拉菜单</title>
<link
rel="stylesheet"
type="text/css"
href="style.css" rel="external nofollow"
/>
<!--引用百度服务器的jQuery库-->
<script
src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
<script
type="text/javascript"
src="script.js"></script>
</head>
<body>
<div
id="nav"
class="nav">
<ul>
<li><a
href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >网站首页</a></li>
<li
class="navmenu"><a
href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >课程大厅</a>
<ul>
<li><a
href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >JavaScript</a></li>
<li><a
href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >jQuery</a></li>
<li><a
href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Ajax</a></li>
</ul>
</li>
<li
class="navmenu"><a
href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >学习中心</a>
<ul>
<li><a
href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >视频学习</a></li>
<li><a
href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >案例学习</a></li>
<li><a
href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >交流平台</a></li>
</ul>
</li>
<li><a
href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >经典案例</a></li>
<li><a
href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >关于我们</a></li>
</ul>
</div>
</body>
</html>
CSS样式表外部style.css文件代码:
/*CSS全局设置*/
*{
margin:0;
padding:0;
}
.nav{
background-color:#EEEEEE;
height:40px;
width:450px;
margin:0
auto;
}
ul{
list-style:none;
}
ul li{
float:left;
line-height:40px;
text-align:center;
}
a{
text-decoration:none;
color:#000000;
display:block;
width:90px;
height:40px;
}
a:hover{
background-color:#666666;
color:#FFFFFF;
}
ul li ul li{
float:none;
background-color:#EEEEEE;
}
ul li ul{
display:none;
}
/*为了兼容IE7写的CSS样式,但是必须写在a:hover前面*/
ul li ul li a:link,ul li ul li a:visited{
background-color:#EEEEEE;
}
ul li ul li a:hover{
background-color:#009933;
}
JS脚本外部script,js文件代码:
$(function(){
$(".navmenu").mouseover(function(){
$(this).children("ul").show();
})
$(".navmenu").mouseout(function(){
$(this).children("ul").hide();
})
})
以上所述是小编给大家介绍的jquery二级导航下拉菜单详解整合,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对亿速云网站的支持!
亿速云「云服务器」,即开即用、新一代英特尔至强铂金CPU、三副本存储NVMe SSD云盘,价格低至29元/月。点击查看>>
免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。