标题：为什么统一信号反复开仓

在螺纹1710 五分钟图测试为什么会有开仓信号模糊点呢 ？ 求指导

input:grid(60,1,6000,1);
variable:level=0;
dist:=barslast(date<>ref(date,1));
oo:=2900;
n: = -5;
ll: oo + n*grid*mindiff;
hh: oo - n*grid *mindiff;

if holding=0  and l > ll+grid*mindiff and h < hh then begin
dnprice:=oo-grid*mindiff;
if low<=dnprice  then begin
buy(1,1,limitr,dnprice);
level:=-1;
end
end
if holding = 1  and h >hh then begin         //上涨平一首
 
  sell(1,1,limitr,hh);
  end
 
 if holding > 0 and c < ll then begin    // 下跌全平
  sell(1,holding,limitr,ll);
  end

if holding>0 and  c > ll then begin        //下跌加仓
      
upprice:=oo+(level+1)*grid*mindiff;
dnprice:=oo+(level-1)*grid*mindiff;

if high>=upprice  and level >n then begin
sell(1,1,limitr,upprice);
level:=level+1;
end

if low<=dnprice and level > n then begin
buy(1,1,limitr,dnprice);
level:=level-1;
end

end