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jQuery simply implements the two-level drop-down menu effect code_jquery

WBOYOriginal: 2016-05-16 15:39:161191browse

The example in this article describes the jQuery simple implementation of the two-level drop-down menu effect code. Share it with everyone for your reference. The details are as follows:

This is a two-level drop-down menu, jquery plug-in version, which runs well under IE6/IE7/IE8. In this example, the menu only displays four groups, but the principle is the same. If the menu is longer, copy it directly Just one set will work until it meets your application.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/jquery-simple-2l-slideout-menu-codes/

The specific code is as follows:

<!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>
<title>两级下拉菜单</title>
<script type="text/javascript" src="jquery1.3.2.js"></script>
<style>
*{ margin:0px; padding:0px; list-style:none; }
body{ font-size:12px; }
.nav{ float:left; clear:both; margin:100px; display:inline; }
.nav li{ float:left; position:relative; }
.nav li a{ display:block; width:60px; padding:8px 0px 6px; text-align:center; color:#000; background:#ccc; text-decoration:none; }
.nav li a:hover { background:#666; color:#fff; }
.nav li ul{ position:absolute; display:none; }
.nav li ul li { float:none; }
.nav li ul li a{ background:#eee; }
</style>
</head>
<body>
<ul id="mainNav" class="nav" >
<li><a href="javascript:void(0);">首 页</a></li>
<li><a href="javascript:void(0);">导航菜单</a>
<ul>
<li><a href="javascript:void(0);" onclick="javascript:alert($(this).html());">采购</a></li>
</ul>
</li>
<li><a href="javascript:void(0);" >企业采购</a>
<ul>
<li><a href="javascript:void(0);" onclick="javascript:alert($(this).html());">企业评测</a></li>
<li><a href="javascript:void(0);" onclick="javascript:alert($(this).html());">企业报价</a></li>
</ul>
</li>
<li><a href="javascript:void(0);">行情报价</a>
<ul>
<li><a href="javascript:void(0);" onclick="javascript:alert($(this).html());">导航1</a></li>
<li><a href="javascript:void(0);" onclick="javascript:alert($(this).html());">导航2</a></li>
<li><a href="javascript:void(0);" onclick="javascript:alert($(this).html());">导航3</a></li>
</ul>
</li>
</ul>
<script language="JavaScript" type="text/javascript">
<!--
$(document).ready(function(){
 var li = $("#mainNav > li"); //找到#mainNav中子元素li；
 var ul;
 li.each(function(i){ //循环每一个LI
  li.eq(i).hover(
   function(){
    $(this).find("ul").show(); //找到li里面的ul元素设置为显示
   },
   function(){
    $(this).find("ul").hide(); 
   }
  )
 })
})
//-->
</script>
</body>
</html>

I hope this article will be helpful to everyone’s jQuery programming.

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