Jquery垂直下拉二级菜单

　自己做了一个基于Jquery 的垂直下拉二级菜单功能，直接看图：

　　 Jquery垂直下拉二级菜单

Html的代码如下：

<!DOCTYPE html>

<html>

<head>

  <meta charset="UTF-8">

  <title>垂直下拉菜单</title>

  <meta name="viewport" content="width=device-width, initial-scale=1">

    <link rel="stylesheet" href="css/style.css" media="screen" type="text/css" />

</head>

<body>Accordion

<div style="text-align:center;clear:both">

</div>

    <!-- Contenedor -->

    <div id="page-sidebar-menu" class="page-sidebar-menu">

        <p class="tab-link"><a class="left-a" href="javascript:void(0)" title="系统日志">系统日志1</a></p>

            <ul class="submenu">

                <li><a href="#">Photoshop1</a></li>

                <li><a href="#">HTML1</a></li>

                <li><a href="#">CSS1</a></li>

                <li><a href="#">Maquetacion web1</a></li>

            </ul>

        <p class="tab-link"><a class="left-a" href="javascript:void(0)" title="系统日志">系统日志2</a></p>

        <p class="tab-link"><a class="left-a" href="javascript:void(0)" title="实盘监控">实盘监控3</a></p>

            <ul class="submenu">

                <li><a href="#">Photoshop3</a></li>

                <li><a href="#">HTML3</a></li>

                <li><a href="#">CSS</a></li>

                <li><a href="#">Maquetacion web3</a></li>

            </ul>

        <p class="tab-link"><a class="left-a" href="javascript:void(0)" title="实盘监控">实盘监控4</a></p>

            <ul class="submenu">

                <li><a href="#">Photoshop4</a></li>

                <li><a href="#">HTML4</a></li>

                <li><a href="#">CSS4</a></li>

                <li><a href="#">Maquetacion web4</a></li>

            </ul>

        <p class="tab-link"><a class="left-a" href="javascript:void(0)" title="实盘监控">实盘监控5</a></p>

            <ul class="submenu">

                <li><a href="#">Photoshop5</a></li>

                <li><a href="#">HTML5</a></li>

                <li><a href="#">CSS5</a></li>

                <li><a href="#">Maquetacion web5</a></li>

            </ul>

    </div>

  <script src='js/jquery-1.10.2.js'></script>

  <script src="js/index.js"></script>

</body>

</html>

$(function() {

    var Accordion = function(el, multiple) {

        this.el = el || {};

        this.multiple = multiple || false;

        var links = this.el.find('.tab-link');

        links.on('click', {el: this.el, multiple: this.multiple}, this.dropdown)

    }

    Accordion.prototype.dropdown = function(e) {

        var $el = e.data.el;

            $this = $(this),

            $next = $this.next();

            if($next.find('li').length ==0){

                return false;

            }

            $next.slideToggle();

            $next.find('li').click(function() {

                $(this).addClass('activeLi').siblings().removeClass('activeLi');

            });

            $this.toggleClass('open');

            if (!e.data.multiple) {

                var oth =$el.find('.submenu').not($next);

                    oth.slideUp().parent().removeClass('open');

                    oth.find('li').removeClass('activeLi');

            };

    }    

    var accordion = new Accordion($('#page-sidebar-menu'), false);

});

CSS代码：

 div,p,ul,li{

    margin: 0;

    padding: 0;

    -webkit-box-sizing: border-box;

    -moz-box-sizing: border-box;

    box-sizing: border-box;

}

    ul li{

        list-style-type: none;

    }

 .page-sidebar-menu .left-a {

        display: block;

        font-size:12px;

        color:#03478b;

        text-decoration: none;

        -webkit-transition: all 0.4s ease;

        -o-transition: all 0.4s ease;

        transition: all 0.4s ease;

    }

    .page-sidebar-menu li.active {

        background: #bbbbbb;

    }

    .tab-link{

        padding:5px;

        margin:2px 0;

        background-color:#E4EFFB;

    }

    p.active {

        background: #5A86A8;

    }

    .page-sidebar-menu p.active a {

        color:#fff;

    }

    .submenu {

        display: none;

        background: #444359;

        font-size: 14px;

    }

    .submenu li {

        border-bottom: 1px solid #4b4a5e;

    }

    .submenu a {

        display: block;

        text-decoration: none;

        color: #d9d9d9;

        font-size: 12px;

        padding: 5px;

        -webkit-transition: all 0.25s ease;

        -o-transition: all 0.25s ease;

        transition: all 0.25s ease;

    }

    .submenu a:hover {

        background: #E4EFFB;

        color: #000;

    }

由于时间匆忙，接直接贴代码，凑活着看

秒客网

Jquery垂直下拉二级菜单

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