主题：[求助]请帮忙编写个区间开仓、反手的公式吧？

gd:=2400;//固定点位2400
n:=5;//n是5
ss:=1;//开仓手数是1

if cross(c,gd) then BEGIN
 sellshort(holding<0,0,thisclose);
    buy(holding=0,ss,thisclose);
end

if c<=gd-n*mindiff then begin
 sell(holding>0,0,thisclose);
 buyshort(holding=0,ss,thisclose);
end

if cross(gd,c) then begin
    sell(holding>0,0,thisclose);
 buyshort(holding=0,ss,thisclose);
end

if c>=gd+n*mindiff then begin
 sell(holding>0,0,thisclose);
 buyshort(holding=0,ss,thisclose);
end