主题：一个模型有点错误，请帮忙给看看，谢谢

if KD then begin       //开多操作

buy(HOLDING=0,1,THISCLOSE);

end

if CLOSE>MAN长 AND Cross(CLOSE,MAN短) then  begin
buy(HOLDING=0,1,THISCLOSE);

end

KK:=Cross(man长,close);   //开多平空条件
if KK or (BIAS>4 AND Cross(MAN短,CLOSE))then begin    //平多操作

SELL(HOLDING>0,HOLDING,THISCLOSE);

end

if KK then begin       //开空操作

buyshort(HOLDING=0,1,THISCLOSE);

end

if CLOSE<MAN长 AND Cross(MAN短,CLOSE) then  begin

buyshort(HOLDING=0,1,THISCLOSE);

end

if KD or (BIAS<-4 AND Cross(CLOSE,MAN短))then begin     //平空操作

SELLSHORT(HOLDING<0,HOLDING,THISCLOSE);

end