reservation_admin/app/admin/view/public/left.html

        <div class="layui-side layui-bg-black kit-side">
            <div class="layui-side-scroll">
                <ul class="layui-nav layui-nav-tree" lay-filter="kitNavbar" kit-navbar>
                {volist name="menus" id="data"}
                    <li class="layui-nav-item {if condition="$data.is_open eq 1"}layui-nav-itemed{/if}">
                        <a href="javascript:;"><i class="fa {$data.icon}" aria-hidden="true"></i><span> {$data.name}</span></a>
                        <ul class="menu_ul layui-nav-child">
                        {notempty name="$data.list"}{volist name="$data.list" id="vo"}
                            {notempty name="$vo.list"}
                            <li>
                                <a class="table" href="javascript:;"><i class="fa {$vo.icon}"></i><span> {$vo.name}</span> <span class="angle"><i class="fa fa-angle-down"></i><span></span></a>
                                <ul {if condition="$vo.is_open eq 1"}style="display:block;"{/if}>
                                    {volist name="$vo.list" id="co"}
                                    <li><a href="javascript:;" data-url="{$co.url}" data-icon="{$co.icon}" data-title="{$co.name}" kit-target data-id='{$co.id}'><i class="fa {$co.icon}" aria-hidden="true"></i><span> {$co.name}</span></a></li>
                                    {/volist}
                                </ul>
                            </li>
                            {else /}
                            <li>
                                <a href="javascript:;" data-url="{$vo.url}" data-icon="{$vo.icon}" data-title="{$vo.name}" kit-target data-id='{$vo.id}'><i class="fa {$vo.icon}" aria-hidden="true"></i><span> {$vo.name}</span></a>
                            </li>
                            {/notempty}
                        {/volist}{/notempty}
                        </ul>
                    </li>
                {/volist}
                </ul>
            </div>
        </div>