public DeliveryFreightSetMapping GetDeliveryFreightSetMapping(DeliveryFreightSetMapping query)
 {
     query.Replace4MySQL();
     StringBuilder strSql = new StringBuilder("select product_freight_set,delivery_freight_set from delivery_freight_set_mapping where 1=1");
     if (query.Product_Freight_Set != 0)
     {
         strSql.AppendFormat(" and product_freight_set={0}", query.Product_Freight_Set);
     }
     return _dbAccess.getSinggleObj<DeliveryFreightSetMapping>(strSql.ToString());
 }