将“血滴子”指标，趋势线金叉下线、上线时各做个选股

编写要求：

VAR0:=SMA((C-LLV(L,30))/(HHV(H,30)-LLV(L,30)),3,1);VAR1:=SMA(VAR0,3,1)*100;趋势线:VAR1;VAR1,COLORYELLOW,POINTDOT,LINETHICK3;VAR2:=MA(VAR1,7);下线:VAR2-3, COLORF00FF0;上线:VAR2+3, COLORF00FF0;强弱线:IF((CROSS(VAR1,VAR2) AND VAR1<25),VAR2,50),LINETHICK2, COLOR00FF00;STICKLINE(VAR2>REF(VAR2, 1), VAR2, VAR2, 8, 1),LINETHICK2, COLORRED;STICKLINE(VAR2

解答：

{VAR0:=SMA((C-LLV(L,30))/(HHV(H,30)-LLV(L,30)),3,1);