主题：这是教程的程序。问题

//开多
IF ( stopprice)<l THEN
BEGIN
SELLSHORT( HOLDING<0,HOLDING,market); //平空操作
BUY( HOLDING=0,1，market);//开多操作 
maxprofit:=0;
END
//平仓
SELL((stopprice)>h and  HOLDING>0,HOLDING,market);//平多
BUYSHORT((stopprice)>hand HOLDING=0,1,market); //开空操作

//多头为例回撤K3平仓
if enterbars>=3 then begin
if c>o and holding>0 then sell(1,holding,market);
if c<o then buy(holding>0,1,market);
end

//空头为例
if enterbars>=3 then begin
if c>o and holding<0 then sell(1,holding,market);
if c<o then buy(holding<0,1,market);
end