dede如何制作下拉菜单导航

首先要调用一个javascript文件

<script type='text/javascript' 
src='{dede:global.cfg_cmsurl/}/images/js/dropdown.js'></script>

然后把导航写成

<div id="nav">       
    <ul>       
        <li class="w1"><a href='{dede:global.cfg_cmsurl/}/'><p>主页</p></a></li>       
        {dede:channel type='top' row='10'}       
        <li class="w1"><a href='\[field:typeurl/\]' \[field:rel/\]><p>\[field:typename/\]</p></a></li>       
        {/dede:channel}       
    </ul>       
    <ul >       
    <div style="clear:both;"></div>       
    {dede:channelartlist typeid='top' cacheid='channelsonlist'}       
        <ul id="dropmenu{dede:field.typeid/}" class="dropMenu">       
        {dede:channel type='son' noself='yes'}       
            <li class="dropMenu"><a href="\[field:typelink/\]">\[field:typename/\]</a></li>       
        {/dede:channel}       
        </ul>       
    {/dede:channelartlist}       
    </ul>       
</div>       
<script type="text/javascript">cssdropdown.startchrome("nav")</script>

最后加入导航部分的css样式：

.dropMenu { background: url("https://img.paonet.com/upload-images-old/ajiaocheng/2012/0603/img/snav.jpg") repeat-x scroll 0 0 transparent; width: 1024px; height: 31px;}       
.dropMenu ul li {height:16px; background:#fff}       
.dropMenu li {height:16px; background:#fff}       
.dropMenu a {width:auto; display: block; color:#000; padding: 2px 0 2px 2px;background:#fff}       
.dropMenu a:hover {color:red; text-decoration: underline;}

从dede的这个功能我们可以看出，虽然很方便，但是dede为我考虑得太多了，对习惯自己修改程序的人来说，很不方便。