js realisiert den Menüeffekt der zweiten Ebene von Jingdong (mit Verzögerungsfunktion)

Das Beispiel in diesem Artikel beschreibt, wie JQuery den Menüeffekt der zweiten Ebene von Jingdong imitieren kann. Teilen Sie es als Referenz mit allen. Die Details lauten wie folgt:
Hier stellen wir js-Code vor, um den Jingdong-Level-2-Menüeffekt mit Verzögerungsfunktion zu imitieren, wodurch die Bedienung komfortabler und natürlicher wird.
Schauen wir uns die Screenshots des Laufeffekts an:
Die Online-Demo-Adresse lautet wie folgt:
http://demo.jb51.net/js/2015/jquery-fjd-style-menu-codes/
Der spezifische Code lautet wie folgt:
<!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>仿京东网站的2级菜单导航</title>
<style type="text/css">
ul{margin:0;padding:0;list-style-type:none;}
a{ text-decoration:none;}
.mold_open_hover,.mold_open{background-image:url();background-repeat:none;display:inline-block;width:10px;height:6px;margin-left:10px;position:relative;top:-2px;}
.mold_open{background-position:0 -6px;}
.mold_open_hover{background-position:0 0;}
.mod-menu{position:relative;z-index:1000;left:-1px;margin-left:100px;}
h1{margin-left:100px;}
.menu-cont-list a:hover{text-decoration:underline;}
.mod-menu .menu-item{width:220px;border-top:solid 1px #d59bb2;border-bottom:solid 2px #d59bb2;position:relative;z-index:22;}
.mod-menu .menu-item li{height:47px;line-height:47px;background:#feebf3;border-top:solid 1px #f0bfd3;}
.mod-menu .menu-item li.mouse-bg{background:url() no-repeat #fff;position:relative;z-index:22;margin-right:-4px;}
.mod-menu .menu-item a{color:#c81d61;font-size:16px;padding-left:33px;display:block;height:45px;border-top:solid 1px #f1f2f7;}
.mod-menu .menu-item a:hover{ text-decoration:none;}
.mod-menu .menu-cont{position:absolute;left:220px;top:1px;background:#fff;width:573px;border:solid 1px #F0BFD3;box-shadow:2px 0 10px rgba(210,33,103,0.25);z-index:20;}
.mod-menu .menu-cont-list{padding:0 30px;}
.mod-menu .menu-cont-list li{border-bottom:dotted 1px #f0bfd3;padding:10px 0;}
.mod-menu .menu-cont-list li:last-child{border-bottom:none;}
.mod-menu .menu-cont-list h3{font-size:14px;font-weight:700;}
.mod-menu .menu-cont-list h3 a{color:#222;}
.mod-menu .menu-list-link a{color:#666;line-height:24px;}
.mod-menu .menu-list-link .long-string{color:#ccc;font-size:12px;padding:0 10px;}
</style>
<script src="jquery-1.6.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
 var l;
 var t;
 var menuItem;
 $(document).ready(menu_init);
 function menu_init()
 {
  var mod_menu=$(".mod-menu");//导航模块区
  menu();//执行展开二级菜单函
  //setTimeout(menu(),1000)
 }
 var menu=function()
 {
  menuItem=$(".menu-item li");//选择导航列表
  menuItem.each(menu_each);/*导航菜单菜单*/
  menuItem.mouseleave(menu1_leave);/*导航菜单菜单*/
  $(".mod-menu").mouseleave(menu2_mouse_leave);
 }//展开二级菜单 
 var menu_each=function()
 {
  var _index=$(this).index();//获取当前选择菜单列表的索引
  $(this).mouseenter(menu_mouse_enter);
 }
 var menu_mouse_enter=function()
 {
  l = $(this);//获取当前鼠标滑过的列表的顶部坐标
  t=setTimeout("menu_mouse_enter_show()", 300)
 }
 function menu_mouse_enter_show()
 {
//  alert(y1);
  var y = l.position().top+1;//获取当前鼠标滑过的列表的顶部坐标
  $(".menu-cont").show();
  $(".menu-cont").css("top",y);//需要显示的对应索引内容
  l.addClass("mouse-bg").siblings().removeClass("mouse-bg");
  $(".menu-cont>div").eq(_index).show().siblings().hide();
 }
 var menu1_leave=function()
 {
  clearTimeout(t);
 }
 var menu2_mouse_leave=function()
 {
  $(".menu-cont").hide();
  menuItem.removeClass("mouse-bg");
 }
</script>
</head>
<body>
 <h1>简单的2级菜单导航</h1>
 <div class="mod-menu f-l">
 <div id="column-left"> 
  <ul class="menu-item">
  <li class=""><a href="#">Wedding</a></li>
  <li class=""><a href="#">Women's Shoes</a></li>
  <li class=""><a href="#">Accessories</a></li>
  <li class=""><a href="#">Beauty & Health</a></li>
  </ul><!--一级菜单列表-->
  <div class="menu-cont hide" style="display: none; top: 241px;">
  <div class="menu-cont-list" style="display: none;">
  <ul>
   <li>
   <h3><a href="#">Wedding Dresses</a></h3>
   <div class="menu-list-link"></div>
   </li>
   <li>
   <h3><a href="#">Bridesmaid Dresses</a></h3>
   <div class="menu-list-link"></div>
   </li>
   <li>
   <h3><a href="#">Wedding Party Dresses</a></h3>
   <div class="menu-list-link">
   <a title="" href="#">Mother of the Brides Dresses</a>
   <span class="long-string">|</span>
   <a title="" href="#">Flower Girl Dresses</a>
   <span class="long-string">|</span>
   <a title="" href="#">Wedding Guest Dresses</a>
   </div>
   </li>
   <li>
   <h3><a href="#">Wedding Accessories</a></h3>
   <div class="menu-list-link">
    <a title="" #">Fabric Swatch</a>
    <span class="long-string">|</span>
    <a title="" href="#">Bridal Lingerie</a>
    <span class="long-string">|</span>
    <a title="" href="#">Wedding Flowers</a>
    <span class="long-string">|</span>
    <a title="" href="#">Wedding Petticoats</a>
   </div>
   </li>
   </ul>
  </div>
  <div class="menu-cont-list" style="display: none;">
   <ul>
   <li>
    <h3><a href="#">Prom Dresses</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Military Ball Dresses</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Evening Dresses</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Cocktail Dresses</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Ball Gowns</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Homecoming Dresses</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Little Black Dresses </a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Quinceanera Dresses</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   </ul>
  </div>
  <div class="menu-cont-list" style="display: none;">
   <ul>
   <li>
    <h3><a href="#">Dresses</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Clubwear</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Leggings</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Lingeries</a></h3>
    <div class="menu-list-link">
    <a title="" #">Bras</a>
    <span class="long-string">|</span>
    <a title="" href="#">Babydolls</a>
    <span class="long-string">|</span>
    <a title="" href="#">Panties</a>
    <span class="long-string">|</span>
    <a title="" href="#">Hosiery</a>
    </div>
   </li>
   <li>
    <h3><a href="#">Swimwear</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Activewear</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   </ul>
  </div>
  <div class="menu-cont-list" style="display: none;">
   <ul>
   <li>
    <h3><a href="#">Heels</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Pumps</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Boots</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   </ul>
  </div>
  <div class="menu-cont-list" style="display: none;">
   <ul>
   <li>
    <h3><a href="#">Evening Bags</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Hats & Scarves</a></h3>
    <div class="menu-list-link">
    <a title="" href="#">Womens Hats</a>
    <span class="long-string">|</span>
    <a title="" href="#">Womens Scarves</a>
    </div>
   </li>
   <li>
    <h3><a href="#">Jewelry</a></h3>
    <div class="menu-list-link">
    <a title="" href="#">Earrings</a>
    <span class="long-string">|</span>
    <a title="" href="#">Necklaces</a>
    <span class="long-string">|</span>
    <a title="" href="#">Rings</a>
    </div>
   </li>
   <li>
    <h3><a href="#">Watches</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   </ul>
  </div>
  <div class="menu-cont-list" style="display: block;">
   <ul>
   <li>
    <h3><a href="#">Wigs & Hair extensions</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Fascinators</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Makeup Tools</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Spas & Massagers</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   <li>
    <h3><a href="#">Health & Fitness</a></h3>
    <div class="menu-list-link">
    </div>
   </li>
   </ul>
  </div>
  </div>
 </div><!--二级菜单内容-->
 </div>
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</body>
</html>
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Ich hoffe, dass dieser Artikel für das JQuery-Programmierungsdesign aller hilfreich sein wird.
js realisiert den Menüeffekt der zweiten Ebene von Jingdong (mit Verzögerungsfunktion)_jquery
