4行代码简单实现js树形菜单

来源：互联网发布：单机版进销存软件编辑：程序博客网时间：2024/06/14 11:39

<!DOCTYPE html><html>  <head>    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />    <title>menu tree</title>    <meta name="viewport" content="width=device-width, initial-scale=1.0">  </head>    <ul class="menu">        <li>            <a href="#">A1</a>            <ul>                <li><a href="#">A1-1</a></li>                <li><a href="#">A1-2</a></li>                <li>                    <a href="#">A1-3</a>                    <ul>                        <li><a href="#">A1-3-1</a></li>                        <li><a href="#">A1-3-2</a></li>                    </ul>                </li>            </ul>        </li>        <li>            <a href="#">A2</a>            <ul>                <li><a href="#">A2-1</a></li>                <li><a href="#">A2-2</a></li>            </ul>                    </li>        <li><a href="#">A3</a></li>    </ul>  <body>      <script type="text/javascript" src="jquery.js"></script>    <script type="text/javascript">        $(document).ready(function(){            $(".menu ul").css("display","none");               $(".menu a").on("click", function(){                    $(this).next().toggle();                                   });                    });    </script>  </body></html>

注：jQuery的版本为v1.11.0

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