layui table不通过URl获取值，合计

done: function (res, curr, count) {
                    var onwanceTotal=0;
                    layui.each(res.data, function (index, d) {
                        onwanceTotal += Number(d.Description)
                    })
                    this.elem.next().find('.layui-table-total td[data-field="Description"] .layui-table-cell').text(data.totalsum);
                }

合计 数据从后台直接传过来