主题：交易策略就没有止损

step:=20;
D:10;
stps:ref(if(holding<0,if(enterprice-llv(l,openbar)>=mindiff*step,enterprice+d*mindiff-CEILING((enterprice-llv(l,openbar))/mindiff/step)*step*mindiff,enterprice+d*mindiff),drawnull),1);
stpl:ref(if(holding>0,if(hhv(h,openbar)-enterprice>=mindiff*step,floor(((hhv(h,openbar)-enterprice)/mindiff/step))*step*mindiff+enterprice-d*mindiff,enterprice-d*mindiff),drawnull),1);
IF h>=stps and HOLDING<0 THEN BEGIN //D---D个价位止损;step---步长;stps----空单止损位;
SELLshort(HOLDING<0,HOLDING,LIMIT,stps);
//止空
END;
IF l<=stpl THEN BEGIN  //D---D个价位止损;step---步长;stpl----多单止损位;
 SELL(HOLDING>0,HOLDING,LIMIT,stpl);
//止多
END;//怎么能把这个改的金字塔能用

一般止损用市价方式，