layui laydate type=datetime 选择时间的时候 实现只选择小时和分钟，不显示秒；

// 时间选择
            var occur_at = laydate.render({
                elem: '#occur_at',
                type: 'datetime',
                format: 'yyyy-MM-dd HH:mm',
                ready: function (date) {
                   //点击选择时间，隐藏秒
                   $('span[lay-type="datetime"]').click(function () {
                        var $span = $(this);
                        console.log('点击了', $span);
                        $('.laydate-time-list>li').eq(2).hide();
                   });
                },
                done: function (value, date) {
                    vm.occur_at = value;
                }
            })