$PBExportHeader$f_var.srf
$PBExportComments$自定义变量函数--自定义函数
global type f_var from function_object
end type

forward prototypes
global function string f_var (string s_var)
end prototypes

global function string f_var (string s_var);string ls1,ls2
int li1,li2
if isvalid(w_rpt_preview) then
	//ls1=w_rpt_preview.istr_rpt.uservar
elseif isvalid(w_rpt_edit) then
	ls1=w_rpt_edit.istr_rpt.uservar
end if
//参数:s_var="系统名称='酒店系统',操作员='Mr. Zhang'"
if ls1>'' then
	if right(ls1,1)<>',' then ls1=ls1+','
	li1=pos(ls1,s_var+'=')
	if li1=0 then return ''
	li2=pos(ls1,",",li1)
	if li2=0 then return ''
	ls2=mid(ls1,li1+len(s_var)+2,li2 -(li1+len(s_var)+2) -1)
end if
return ls2

end function