给黑马线指标编写一个选股公式

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 A270 AND 趋势线>80,90,100),COLORFF0000; 选股就是 趋势线（小于20） 金叉 黑马线（小于20）

爱约股解答：

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;

aaa:=黑马线<20;

bbb:=趋势线<20;