怎么把oo定义成为 平空  或者平多 处的价位呢？？？

下文定义oo是当日开盘价，我想把它改成 平仓处的价位 ，怎么写呢？求指导

input:grid(3,1,60,1);

variable:level=0;

dist:=barslast(date<>ref(date,1));
oo:=ref(open,dist);
 
if holding=0 then begin
 dnprice:=oo-grid*mindiff;
 
 if low<=dnprice then begin
  buy(1,1,limitr,dnprice);
  level:=-1;
 end
end 

if holding=0 then begin
 upprice:=oo+grid*mindiff;
 
 if high>=upprice then begin
  buyshort(1,1,limitr,upprice);
  level:=1;
 end 
end

if holding>0 then begin
 upprice:=oo+(level+1)*grid*mindiff;
 dnprice:=oo+(level-1)*grid*mindiff;
 
 if high>=upprice then begin
  sell(1,1,limitr,upprice);
  level:=level+1;
 end
 
 if low<=dnprice then begin
  buy(1,1,limitr,dnprice);
  level:=level-1;
 end
 
 if time=closetime(0) then
  sell(1,holding,limitr,close);
end 

if holding<0 then begin 
 upprice:=oo+(level+1)*grid*mindiff;
 dnprice:=oo+(level-1)*grid*mindiff;
 
 if low<=dnprice then begin
  sellshort(1,1,limitr,dnprice);
  level:=level-1;
 end
 
 if high>=upprice then begin
  buyshort(1,1,limitr,upprice);
  level:=level+1;
 end
 
 if time=closetime(0) then
  sellshort(1,holding,limitr,close);
end

limitr 后边的参数就是限价的价格，改成oo就可以了。

input:grid(3,1,60,1);

variable:level=0;

dist:=barslast(date<>ref(date,1));
oo:=ref(open,dist);
 
if holding=0 then begin
 dnprice:=oo-grid*mindiff;
 
 if low<=dnprice then begin
  buy(1,1,limitr,dnprice);
  level:=-1;
 end
end 

if holding=0 then begin
 upprice:=oo+grid*mindiff;
 
 if high>=upprice then begin
  buyshort(1,1,limitr,upprice);
  level:=1;
 end 
end

if holding>0 then begin
 upprice:=oo+(level+1)*grid*mindiff;
 dnprice:=oo+(level-1)*grid*mindiff;
 
 if high>=upprice then begin
  sell(1,1,limitr,oo);
  level:=level+1;
 end
 
 if low<=dnprice then begin
  buy(1,1,limitr,dnprice);
  level:=level-1;
 end
 
 if time=closetime(0) then
  sell(1,holding,limitr,oo);
end 

if holding<0 then begin 
 upprice:=oo+(level+1)*grid*mindiff;
 dnprice:=oo+(level-1)*grid*mindiff;
 
 if low<=dnprice then begin
  sellshort(1,1,limitr,oo);
  level:=level-1;
 end
 
 if high>=upprice then begin
  buyshort(1,1,limitr,upprice);
  level:=level+1;
 end
 
 if time=closetime(0) then
  sellshort(1,holding,limitr,oo);
end