jquery实现树形菜单完整代码
本实例实现了树形的动态菜单,兼容IE8,火狐,Chrome等浏览器。使用了jQuery的toggle() 方法。效果和代码如下:
<!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=utf-8" /> <title>jquery的树形菜单代码 </title> <meta name="keywords" content="www.cnblogs.com/jihua"/> <style type="text/css"> body { font-family:"宋体"; font-size: 12px; line-height: 1.5em; color:#7FB0C8; padding:0; margin:0; background: #336699;} ul,ol,li,dl,dt,dd { margin:0; padding:0; list-style-type:none;} h1,h2,h3,form,input,iframe,span { margin:0; padding:0;} a { color:#7FB0C8;} a:link {color: #7FB0C8; TEXT-DECORATION: none;} a:visited {color: #7FB0C8; TEXT-DECORATION: none;} a:hover {color: #fff; TEXT-DECORATION: none;} .white { color:#fff;} .white a:link {color: #fff; TEXT-DECORATION: none;} .white a:visited {color: #fff; TEXT-DECORATION: none;} .white a:hover {color: #73E1F5; TEXT-DECORATION: none;} /* 树形菜单开始 */ .close { float:right; clear:right; font-size:12px; font-weight:normal; cursor:pointer; padding-right:10px;} .title { font-size:14px; color:#fff; margin-bottom:10px; padding-left:5px; width:290px;} .menu { width:290px; height:330px; margin-bottom:10px;} .l1 { background:#000; font-size:13px; padding:5px 0 0 30px; height:20px; margin-bottom:5px; cursor:pointer;} .slist { margin:0 0 5px 0; display:none;} .l2 { padding:0 0 0 35px; font-size:13px;} .l2 a { padding:6px 0 0 5px; width:230px; height:21px; display:block;} .currentl2 a,.l2 a:hover { background:#1E5A82; color:#fff;} .sslist { background:#156890; width:235px; overflow:hidden; margin:0 0 5px 35px; display:none;} .l3 a { padding:6px 0 0 5px; width:230px; height:20px; display:block;} .currentl3 a,.l3 a:hover { color:#fff; font-weight:bold;} </style> <script type="text/javascript" src="http://keleyi.com/keleyi/pmedia/jquery/jquery-1.4.2.min.js"></script> <script type="text/javascript"> // 树状菜单 $(document).ready(function () { $(".l1").toggle(function () { $(".slist").animate({ height: 'toggle', opacity: 'hide' }, "slow"); $(this).next(".slist").animate({ height: 'toggle', opacity: 'toggle' }, "slow"); }, function () { $(".slist").animate({ height: 'toggle', opacity: 'hide' }, "slow"); $(this).next(".slist").animate({ height: 'toggle', opacity: 'toggle' }, "slow"); }); $(".l2").toggle(function () { $(this).next(".sslist").animate({ height: 'toggle', opacity: 'toggle' }, "slow"); }, function () { $(this).next(".sslist").animate({ height: 'toggle', opacity: 'toggle' }, "slow"); }); $(".l2").click(function () { $(".l3").removeClass("currentl3"); $(".l2").removeClass("currentl2"); $(this).addClass("currentl2"); }); $(".l3").click(function () { $(".l3").removeClass("currentl3"); $(this).addClass("currentl3"); }); $(".close").toggle(function () { $(".slist").animate({ height: 'toggle', opacity: 'show' }, "fast"); $(".sslist").animate({ height: 'toggle', opacity: 'show' }, "fast"); }, function () { $(".slist").animate({ height: 'toggle', opacity: 'hide' }, "fast"); $(".sslist").animate({ height: 'toggle', opacity: 'hide' }, "fast"); }); }); </script> </head> <body> <h1 class="title"><span class="close">全部收起/展开</span>Jihua树形菜单</h1> <div class="menu"> <h1 class="l1">一级菜单</h1> <div class="slist"> <h2 class="l2"><a href="#">二级菜单</a></h2> <ul class="sslist"> <li class="l3"><a href="#">·三级菜单</a></li> <li class="l3"><a href="#">·三级菜单</a></li> <li class="l3"><a href="#" target="_blank">·jihua.cnblogs.com</a></li> <li class="l3"><a href="#">·三级菜单</a></li> </ul> <h2 class="l2"><a href="#">二级菜单</a></h2> <ul class="sslist"> <li class="l3"><a href="#">·三级菜单</a></li> <li class="l3"><a href="#">·三级菜单</a></li> <li class="l3"><a href="#" target="_blank">·三级菜单</a></li> <li class="l3"><a href="#">·三级菜单</a></li> </ul> <h2 class="l2"><a href="#">二级jb51.net</a></h2> </div> <h1 class="l1">一级脚本</h1> <div class="slist"> <h2 class="l2"><a href="#">二级菜单计划</a></h2> <h2 class="l2"><a href="#">二级菜单</a></h2> <h2 class="l2"><a href="#">二级菜单</a></h2> </div> <h1 class="l1">一级菜单</h1> <div class="slist"> <h2 class="l2"><a href="#">二级菜单</a></h2> <h2 class="l2"><a href="#">二级菜单</a></h2> <h2 class="l2"><a href="#">二级菜单</a></h2> </div> </div> </body> </html>
本实例用到jquery的toggle() 方法,介绍如下:
定义和用法
toggle() 方法切换元素的可见状态。
如果被选元素可见,则隐藏这些元素,如果被选元素隐藏,则显示这些元素。
语法
$(selector).toggle(speed,callback,switch)
提示和注释
注释:该效果适用于通过 jQuery 隐藏的元素,或在 CSS 中声明 display:none 的元素(但不适用于 visibility:hidden 的元素)。
以上就是jquery实现树形菜单完整代码,希望对大家的学习jquery程序设计有所帮助。
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