//检查列名是否有效 as_colname //列名 string ls_objects ls_objects= dw_2.describe("datawindow.objects") ls_objects= '~t' + ls + '~t' if pos(ls,'~t' + trim(as_colname) + '~t' ) > 0 then messagebox('','true') end if //v_e_oxddnr_产品编号
