Navven

<script>
    layui.use('couponform', layui.factory('couponform')).use(['couponform', 'table', 'laydate', 'laytpl', 'common', 'tag'], function () {
        var $ = layui.$
            , form = layui.form
            , setter = layui.setter
            , laydate = layui.laydate
            , tag = layui.tag;