layui 的一些小技巧写法如：select默认选择，时间选择插件

 <div class="layui-form-item"> <label class="layui-form-label">选择广告位置</label> <div class="layui-input-inline" > <select name="adv_site" id="siteid" lay-filter="pid"> <option value="n">全部</option> {loop $advsite_list $v} <option value=""></option> <option value="{$v['site_id']}"> {$v['site_name']}</option> {/loop} </select> </div> </div>

<script>
layui.use("list");
layui.use(['myform'],function () {
var form = layui.form();
var laydate = layui.laydate;
//日期时间选择器
laydate.render({
elem: '#starttime',
type: 'datetime'
});

 laydate.render({ elem: '#endtime', type: 'datetime' }); $("#siteid").val({$type});//默认选择上面select的值 经常用到的 $("#expense_type").val({$expense_type}); form.render('select'); }); </script>