varmoq=conn.QuerySingleOrDefault<int?>(" select max(moq) from dc_base_sku where product_inner_code=@product_inner_code ",new{product_inner_code=itemGroup.Key.product_inner_code});
varmax_delivery=conn.QuerySingleOrDefault<int?>(" select max(supplier_delivery + `transfer_delivery`) from dc_base_sku where product_inner_code=@product_inner_code ",new{product_inner_code=itemGroup.Key.product_inner_code});