本文实例讲述了jQuery实现下滑菜单导航效果代码。分享给大家供大家参考。具体如下：
这里演示jquery向下滑的导航菜单代码，黄色风格下滑菜单，可作为网站的主导航菜单，二级菜单向下滑出，兼容性也是很不错的，本菜单来源自网络，丢失原作者署名信息，请原作者看到后与我们联系署名。
运行效果截图如下：
在线演示地址如下：
http://demo.jb51.net/js/2015/jquery-down-show-nav-menu-style-codes/
具体代码如下：
<!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" /> <style> html, body, ul, li, h1, h2, h3, h4, h5, h6, fieldset, legend {padding:0; margin:0;} body {font:12px/normal Verdana, Arial, Helvetica, sans-serif;} ul,li {list-style-type:none; text-transform:capitalize;} .clear {clear:both; *display:inline;/*IE only*/} #nav {margin:0 auto 60px; width:1080px; display:block;} #nav .jquery_out {float:left;line-height:32px;display:block; border-right:1px solid #fff; text-align:center; color:#fff;font:18px/32px; background:#062723 url(images/slide-panel_03.png) 0 0 repeat-x;} #nav .jquery_out .smile {padding-left:1em;} #nav .jquery_inner {margin-left:16px;} #nav .jquery {margin-right:1px;padding:0 2em;} #nav .mainlevel {background:#ffe60c; float:left; border-right:1px solid #fff; width:140px;/*IE6 only*/} #nav .mainlevel a {color:#000; text-decoration:none; line-height:32px; display:block; padding:0 20px; width:100px;} #nav .mainlevel a:hover {color:#fff; text-decoration:none; background:#062723 url(images/slide-panel_03.png) 0 0 repeat-x;} #nav .mainlevel ul {display:none; position:absolute;} #nav .mainlevel li {border-top:1px solid #fff; background:#ffe60c; width:140px;/*IE6 only*/} .log {text-align:center; color:skyblue; line-height:24px; text-transform:capitalize; margin:50px auto;} </style> <script type="text/javascript" src="jquery-1.6.2.min.js"></script> <script type="text/javascript"> $(document).ready(function(){ $('li.mainlevel').mousemove(function(){ $(this).find('ul').slideDown();//you can give it a speed }); $('li.mainlevel').mouseleave(function(){ $(this).find('ul').slideUp("fast"); }); }); </script> <title>jquery下拉竖导航菜单代码</title> </head> <body> <br /><br /><br /><br /><br /><br /> <div id="menu"> <ul id="nav"> <li> <div> <div> <span>let'jquery</span><span>^_^</span> </div> </div> </li> <li id="mainlevel_01"><a href="#" target="_blank">do touch me</a> <ul id="sub_01"> <li><a href="#" target="_blank">JavaScript</a></li> <li><a href="#" target="_blank">jQuery</a></li> <li><a href="#" target="_blank">slideUp</a></li> <li><a href="#" target="_blank">slideDown</a></li> <li><a href="#" target="_blank">animate</a></li> </ul> </li> <li id="mainlevel_02"><a href="#" target="_blank">do touch me</a> <ul id="sub_02"> <li><a href="#" target="_blank">JavaScript</a></li> <li><a href="#" target="_blank">jQuery</a></li> <li><a href="#" target="_blank">slideUp</a></li> <li><a href="#" target="_blank">slideDown</a></li> <li><a href="#" target="_blank">up and down</a></li> <li><a href="#" target="_blank">animate</a></li> </ul> </li> <li id="mainlevel_03"><a href="#" target="_blank">do touch me</a> <ul id="sub_03"> <li><a href="#" target="_blank">JavaScript</a></li> <li><a href="#" target="_blank">jQuery</a></li> <li><a href="#" target="_blank">animate</a></li> </ul> </li> <li id="mainlevel_04"><a href="#" target="_blank">do touch me</a> <ul id="sub_04"> <li><a href="#" target="_blank">JavaScript</a></li> <li><a href="#" target="_blank">jQuery</a></li> <li><a href="#" target="_blank">slideUp</a></li> <li><a href="#" target="_blank">slideDown</a></li> </ul> </li> <li id="mainlevel_05"><a href="#" target="_blank">do touch me</a> <ul id="sub_05"> <li><a href="#" target="_blank">JavaScript</a></li> <li><a href="#" target="_blank">jQuery</a></li> <li><a href="#" target="_blank">slideDown</a></li> <li><a href="#" target="_blank">up and down</a></li> <li><a href="#" target="_blank">animate</a></li> </ul> </li> <li id="mainlevel_06"><a href="#" target="_blank">do touch me</a> <ul id="sub_06"> <li><a href="#" target="_blank">JavaScript</a></li> <li><a href="#" target="_blank">jQuery</a></li> <li><a href="#" target="_blank">slideUp</a></li> <li><a href="#" target="_blank">slideDown</a></li> <li><a href="#" target="_blank">up and down</a></li> </ul> </li> <div></div> </ul> </div> <p align="center"></p> <p align="center"><p align="center">jquery下拉竖导航菜单代码，来源网络，请原作者联系我们署名。</p></p> <p align="center"></p> </body> </html>
希望本文所述对大家的jquery程序设计有所帮助。
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