通达信很好的做空指标公式

这是一个很好的做空指标，帮我逃过了多次大跌！！！！感兴趣的朋友拿去

A1:3*SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1)-2*SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1);
黑马线:EMA(A1,5),LINETHICK2,COLOR6600FF;
A2:=(黑马线-REF(黑马线,1))/REF(黑马线,1)*100;
A3:=EMA(C,5);
A4:=((C-LLV(L,21))/(HHV(H,21)-LLV(L,21)))*100;
趋势线:(MA(3*SMA(A4,6,1)-2*SMA(SMA(A4,5,1),5,1),2)),LINETHICK2,COLORYELLOW;
A5:=(HHV(H,60)-C)/(HHV(H,60)-LLV(L,60))*100;
DRAWTEXT(FILTER(REF(黑马线,1)>90 AND A2<0,7),黑马线,'跑'),COLOR00FF00;
DRAWTEXT(CROSS(A1,黑马线)AND 黑马线<A5,黑马线,'黑马');
DRAWTEXT(CROSS(黑马线,A5)AND 趋势线<80,黑马线,'追涨');
DRAWTEXT(CROSS(趋势线,0)AND 黑马线<40,5,'大黑马');
底部:(A2<-10 AND A2>REF(A2,1))*25,COLORRED;
DRAWICON(底部 AND A3>REF(A3,1),25,4);
机会来临:REF(IF((MA(C,5)-C)/C>0.04 AND (MA(C,10)-MA(C,5))/MA(C,5)>0.04,30,0),1),COLORF00FF0;
大势已去:IF(CROSS(黑马线,A1)AND 黑马线>70 AND 趋势线>80,90,100),COLORFF0000;