js implementiert Code_Javascript-Fähigkeiten mit unendlichem Baumnavigationslisteneffekt

Das Beispiel in diesem Artikel beschreibt den JS-Code zur Implementierung des Effekts einer unendlichen Baumnavigationsliste. Teilen Sie es als Referenz mit allen. Die Details lauten wie folgt:

Dies ist eine JS-Implementierung eines unendlichen Baum-Dropdown-Navigationsmenüs. Es verwendet eine gekapselte JS-Klasse.

Der Screenshot des Laufeffekts sieht wie folgt aus:

Die Online-Demo-Adresse lautet wie folgt:

http://demo.jb51.net/js/2015/js-unlimit-tree-style-nav-list-codes/

Der spezifische Code lautet wie folgt:

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css"> 
 *{ margin:0; padding:0; list-style:none;} 
 body { margin:20px;} 
 h2 { font-family:"黑体"; font-size:24px; text-align:center; line-height:32px;} 
 h5 { font-size:12px; text-align:center; font-weight:normal; color:#666; line-height:28px;} 
 #nav a { text-decoration:underline;color:#06c; font-size:14px; line-height:24px;} 
 #nav ul{ margin-bottom:5px;} 
 #nav strong{ color:#696;} 
 #nav.dyn li ul{ display:none;} 
 #nav.dyn li ul.show{ display:block;} 
 #nav.dyn li{ padding-left:15px;} 
 #nav.dyn li.parent{ background:url(images/user_23.gif) 5px 10px no-repeat;} 
 #nav.dyn li.open{ background:url(images/user_23.gif) 5px -34px no-repeat;} 
 </style> 
<script type="text/javascript">
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  return (tempObj.nodeType==1)&#63;tempObj:false;
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  var reg=/^\s+$/;
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 setDebug:function(bug){
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   e.preventDefault();
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   case 'swap':
    o.className=!DOMhelp.cssjs('check',o,c1)&#63;o.className.replace(c2,c1):o.className.replace(c1,c2);
   break;
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 return false;
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}
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</script> 
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<!-- 
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 showClass:'show', 
 parentClass:'parent', 
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 var triggerLink; 
 if(!document.getElementById || !document.createTextNode){return;} 
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 DOMhelp.cssjs('add',nav,sn.dynamicClass);  
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  triggerLink.onclick=DOMhelp.safariClickFix; 
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  DOMhelp.cssjs('add',nested[i],sn.showClass); 
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 DOMhelp.cancelClick(e); 
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DOMhelp.addEvent(window,'load',sn.init,false); 
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</script> 
<h2>js实现无限级树形导航列表</h2>
<ul id="nav"> 
 <li><a href="#">主页</a></li> 
 <li><a href="#">产品</a> 
 <ul> 
  <li><a href="#">大类别一</a> 
  <ul> 
   <li><a href="#">小类别一</a> 
   <ul> 
    <li><a href="#">次类别一</a></li> 
    <li><a href="#">次类别二</a></li> 
   </ul> 
   </li> 
   <li><a href="#">小类别二</a></li> 
  </ul> 
  </li> 
  <li><a href="#">大类别二</a></li> 
  <li><a href="#">大类别三</a> 
  <ul> 
   <li><a href="#">小类别一</a></li> 
   <li><a href="#">小类别二</a></li> 
  </ul> 
  </li> 
 </ul> 
 </li> 
 <li><a href="#">服务</a> 
 <ul> 
  <li><a href="#">大类别一</a></li> 
  <li><a href="#">大类别二</a></li> 
  <li><a href="#">大类别三</a></li> 
 </ul> 
 </li> 
 <li><a href="#">合作</a></li> 
 <li><a href="#">关于我们</a> 
 <ul> 
  <li><a href="#">大类别一</a> 
  <ul> 
   <li><a href="#">小类别一</a></li> 
   <li><a href="#">小类别二</a></li> 
  </ul> 
  </li> 
  <li><a href="#">大类别二</a> 
  <ul> 
   <li><a href="#">小类别一</a></li> 
   <li><a href="#">小类别二</a></li> 
  </ul> 
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  <li><a href="#">大类别三</a> 
  <ul> 
   <li><a href="#">小类别一</a></li> 
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  </ul> 
  </li> 
  <li><a href="#">大类别四</a></li> 
 </ul> 
 </li> 
 <li><a href="#">联系我们</a> 
 <ul> 
  <li><a href="#">大类别一</a></li> 
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 </ul> 
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Ich hoffe, dass dieser Artikel für die JavaScript-Programmierung aller hilfreich sein wird.