if holding=0 then
   begin
   MyEnterPrice:=open;
   buy(1,1,LIMITR,MyEnterPrice);
   end;

if holding>0 and high>=AVGENTERPRICE+2 then
   begin
   MyExitPrice:=AVGENTERPRICE+2;
   sell(1,0,LIMITR,MyExitPrice);
   end;
  
if holding>0 and low<=MyEnterPrice-5 then
   begin
   LongPrice5:=MyEnterPrice-5;
   buy(1,1,LIMITR,LongPrice5);
   end;
 
  
if holding>0 and low<=MyEnterPrice-10 then
   begin
   LongPrice10:=MyEnterPrice-10;
   buy(1,1,LIMITR,LongPrice10);
   end;

  
if holding>0 and low<=MyEnterPrice-20 then
   begin
   LongPrice20:=MyEnterPrice-20;
   buy(1,1,LIMITR,LongPrice20);
   end;

  
if holding>0 and low<=MyEnterPrice-50 then
   begin
   LongPrice50:=MyEnterPrice-50;
   buy(1,1,LIMITR,LongPrice50);
   end;
  
  
if holding>0 and low<=MyEnterPrice-100 then
   begin
   LongPrice100:=MyEnterPrice-100;
   buy(1,1,LIMITR,LongPrice100);
   end;

if holding>0 and low<=MyEnterPrice-200 then
   begin
   LongPrice200:=MyEnterPrice-200;
   buy(1,1,LIMITR,LongPrice100);
   end;

if holding>0 and low<=MyEnterPrice-500 then
   begin
   LongPrice500:=MyEnterPrice-500;
   buy(1,1,LIMITR,LongPrice500);
   end;

这些代码看不出问题，请写全部的代码