console
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>layui-extend</title>
<link rel="stylesheet" href="//cdn.jsdelivr.net/gh/sentsin/layui@2.5.7/dist/css/layui.css">
<link rel="stylesheet" href="//cdn.jsdelivr.net/gh/MicroAnswer/layui_dropdown@2.3.2/dist/dropdown.css">
</head>
<body>
<div style="margin: 20px;">
<button class="layui-btn layui-btn-sm"
lay-filter="test1"
lay-dropdown="{menus: [{layIcon:'layui-icon-username',txt: '个人中心', event:'usercenter'}, {layIcon: 'layui-icon-set',txt: '设置', event:'set'}, {layIcon: 'layui-icon-logout', txt: '退出登录', event:'loginout'}]}">
<span>下拉菜单</span>
<i class="layui-icon layui-icon-triangle-d"></i>
</button>
</div>
<script src="//cdn.jsdelivr.net/gh/sentsin/layui@2.5.7/dist/layui.js"></script>
<script>
layui.extend({
dropdown: '{/}//cdn.jsdelivr.net/gh/MicroAnswer/layui_dropdown@2.3.2/dist/dropdown'
}).use(['dropdown'], function() {
var dropdown = layui.dropdown;
});
</script>
</body>
</html>