打开网页展开式的菜单,改成默认隐藏式的,点击一级菜单后再显示二级菜单,点击二级显示三级。如图:
改成:
<!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>菜单</title>
<!--图标样式-->
<link rel="stylesheet" type="text/css" href="shuxingzhedie/shuxingzhedie/css/bootstrap.min.css" />
<!--主要样式-->
<link rel="stylesheet" type="text/css" href="shuxingzhedie/shuxingzhedie/css/style.css" />
<script type="text/javascript" src="shuxingzhedie/shuxingzhedie/js/jquery-1.7.2.min.js"></script>
<script type="text/javascript">
$(function(){
$('.tree li:has(ul)').addClass('parent_li').find(' > span').attr('title', 'Collapse this branch');
$('.tree li.parent_li > span').on('click', function (e) {
var children = $(this).parent('li.parent_li').find(' > ul > li');
if (children.is(":visible")) {
children.hide('fast');
$(this).attr('title', 'Expand this branch').find(' > i').addClass('icon-plus-sign').removeClass('icon-minus-sign');
} else {
children.show('fast');
$(this).attr('title', 'Collapse this branch').find(' > i').addClass('icon-minus-sign').removeClass('icon-plus-sign');
}
e.stopPropagation();
});
});
</script>
</head>
<body>
<div class="tree">
<ul>
<li>
<span><i class="icon-calendar"></i>一级菜单</span>
<ul>
<li>
<span class="badge badge-success"><i class="icon-minus-sign"></i>二级菜单</span>
<ul>
<li>
<a href="/website/index.html" target="mainFrame">三级菜单</a>
</li>
<li>
<a href="/website/index.html" target="mainFrame">三级菜单</a>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</body>
</html>
由于不能传文件,我提供了百度网盘下载这段代码中的CSS和JS文件
https://pan.baidu.com/s/1xN8Cc_W2XiCkH4l3S2zFHA
提取码:ruta