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Jquery系列之横向纵向菜单

发布时间:2020-04-08 10:54:03 阅读:1826 作者:zhuweiat2009 栏目:web开发
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jsp页面

<%@ page language="java" contentType="text/html; charset=UTF-8"     pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <link type="text/css" rel="stylesheet" href="css/menu.css"></link> <script type="text/javascript" src="js/jquery-1.4.2.js"></script> <script type="text/javascript" src="js/menu.js"></script> <title>横向纵向菜单</title> </head> <body>     <ul>             <li class="main">                     <a href="#">菜单项1</a>                 <ul>                     <li>                         <a href="#">子菜单项11</a>                     </li>                     <li>                         <a href="#">子菜单项12</a>                     </li>                 </ul>             </li>             <li class="main">                 <a href="#">菜单项2</a>                 <ul>                     <li>                         <a href="#">子菜单项21</a>                     </li>                     <li>                         <a href="#">子菜单项22</a>                     </li>                 </ul>             </li>             <li class="main">                 <a href="#">菜单项3</a>                 <ul>                     <li>                         <a href="#">子菜单项31</a>                     </li>                     <li>                         <a href="#">子菜单项32</a>                     </li>                 </ul>             </li>         </ul>         <br />         <br />         <br />         <ul>             <li class="hmain">                     <a href="#">菜单项1</a>                 <ul>                     <li>                         <a href="#">子菜单项11</a>                     </li>                     <li>                         <a href="#">子菜单项12</a>                     </li>                 </ul>             </li>             <li class="hmain">                 <a href="#">菜单项2</a>                 <ul>                     <li>                         <a href="#">子菜单项21</a>                     </li>                     <li>                         <a href="#">子菜单项22</a>                     </li>                 </ul>             </li>             <li class="hmain">                 <a href="#">菜单项3</a>                 <ul>                     <li>                         <a href="#">子菜单项31</a>                     </li>                     <li>                         <a href="#">子菜单项32</a>                     </li>                 </ul>             </li>         </ul> </body> </html> 

css样式

ul,li{      /*清除ul和li上默认的小圆点*/     list-style: none;  }   ul {      /*清除子菜单的缩进值*/     padding0;      margin0;  }  .main,.hmain {      background-p_w_picpath: url(../p_w_picpaths/title.gif);      background-repeat: repeat-x;      width120px;  }  li {      background-color#EEEEEE;  }  a {      /*取消所有的下划线*/     text-decoration: none;      padding-left20px;      display: block;      display: inline-block;      width100px;      padding-top3px;      padding-bottom3px;  }  .main a.hmain a {      color: white;      background-p_w_picpath: url(../p_w_picpaths/collapsed.gif);      background-repeat: no-repeat;      background-position3px center;  }  .main li a.hmain li a {      color: black;      background-p_w_picpath: none;  }  .main ul.hmain ul {      display: none;  }  .hmain {      float: left;      margin-right1px;  } 

Jquery代码

$(document).ready(function(){      //页面中的DOM已经装载完成时,执行的代码      $(".main > a").click(function(){          //找到主菜单项对应的子菜单项          var ulNode = $(this).next("ul");          /*          if (ulNode.css("display") == "none") {              ulNode.css("display","block");          } else {              ulNode.css("display","none");          }          */         //ulNode.show("slow");//normal fast          //ulNode.hide();          //ulNode.toggle();          //          //ulNode.slideDown("slow");          //ulNode.slideUp;          ulNode.slideToggle();          changeIcon($(this));      });      $(".hmain").hover(function(){          $(this).children("ul").slideDown();          changeIcon($(this).children("a"));      },function(){          $(this).children("ul").slideUp();          changeIcon($(this).children("a"));      });  });   /**   * 修改主菜单的指示图标   */ function changeIcon(mainNode) {      if (mainNode) {          if (mainNode.css("background-p_w_picpath").indexOf("collapsed.gif") >= 0) {              mainNode.css("background-p_w_picpath","url('p_w_picpaths/expanded.gif')");          } else {              mainNode.css("background-p_w_picpath","url('p_w_picpaths/collapsed.gif')");          }      }  }  

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