$PBExportHeader$f_myget.srf
$PBExportComments$getfromstring() 的替代--函数
global type f_myget from function_object
end type

forward prototypes
global function string f_myget (datawindow f_dw, long f_row, string f_col)
end prototypes

global function string f_myget (datawindow f_dw, long f_row, string f_col);string ls//因为oracle很多情况会返回null值,而null值跟一个有效值比较时,ls1=ls2和ls1<>ls2都为返回false
ls=trim(f_dw.getitemstring(f_row,f_col))
if isnull(ls) then ls=''
return ls
end function