//主从表的统一查询内容
            if (!input.content.IsEmpty())
            {
                //查询明细(子查询）
                var q_Sub = q_APs.Where(w => false
                     || w.InvoiceNo == input.content
                     || w.InvoiceName == input.content
                     || w.OrderNo == input.content
                     || (w.Remark ?? "").Contains(input.content));

                //主表
                q_AP = q_AP.Where(w => (false
                    || w.APNO == input.content
                    || w.SupplierCode == input.content
                    || (w.SupplierName ?? "").Contains(input.content)) || q_Sub.Any(x => x.APNO == w.APNO));
            }