编写要求：

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; 选股就是 趋势线（小于20） 金叉 黑马线（小于20）

www.guhai.com.cn股海网解答：

 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);