主题：每涨5%就卖出20%的仓位，怎么写

variable:n=0;

if 开仓条件 and holding=0 then begin

   buy(1,100,marketr);

   cc:=holding;

   n:=0;

end

if c>=enterprice*1.05 and c<enterprice>1.1 and n=0 and holding>0 then begin

  n:=1;

  sell(1,cc*0.2,marketr);

end

if c>=enterprice*1.1 and c<enterprice>1.15 and n=1 and holding>0 then begin

  n:=2;

  sell(1,cc*0.2,marketr);

end

if c>=enterprice*1.15 and c<enterprice>1.2 and n=2 and holding>0 then begin

  n:=3;

  sell(1,cc*0.2,marketr);

end

if c>=enterprice*1.2 and c<enterprice>1.25 and n=3 and holding>0 then begin

   n:=4;

   sell(1,cc*0.2,marketr);

end

if c>=enterprice*1.30 and n=4 then begin

   n:=5;

   sell(1,0,marketr);

end