<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div>
<ul class="sidebar-menu" data-id="sidebar-tab1">
<li><a href="/Admin">Admin Tab</li>
<li class="treeview">
<a href="#">Admin Management</a>
<ul class="treeview-menu">
<li><a href="#"></a>Admin1</li>
<li><a href="#"></a>Admin2</li>
</ul>
</li>
<li class="treeview">
<a href="#">Report Management</a>
<ul class="treeview-menu">
<li><a href="/Report1"></a>Report1</li>
<li><a href="/Report2"></a>Report2</li>
<li class="treeview">
<a href="#">Other Reports</a>
<ul class="treeview-menu">
<li><a href="/M1"></a>OtherReport1</li>
<li><a href="/M2"></a>OtherReport2</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</body>
</html>
测试结果如下：
标签：Management,Admin2,Admin,menu,Html,三级 From： https://www.cnblogs.com/keeplearningandsharing/p/18439895