A:=MA(C,20)>REF(MA(C,20),1);{20日线向上}
A1:=V=LLV(V,30);{成交量为30日地量}
A2:=CROSS(REF(MA(C,20),1),REF(MA(C,5),1)) AND REF(MA(C,5),1)/REF(MA(C,20),1)>0.985;{昨天5日线轻微跌破20日线}
A3:=MA(C,5)>REF(MA(C,5),1);{今天5日线反身向上}
A4:=MIN(C,O)/L>1.03;{长下影}
XG:A AND A1 AND A2 AND A3 AND A4;