V0:=ABS(CLOSE-OPEN)/(HIGH-LOW)>0.5;
V1:= V0 AND REF(V0,2) AND
REF(CLOSE,2)>REF(OPEN,2) AND
REF(CLOSE,1) CLOSE>OPEN AND
CLOSE>REF(CLOSE,2) AND
CLOSE>REF(OPEN,1) AND
REF(C,1) LOW 飞龙火炮选股:BACKSET(V1,3);