三阴回调选股

Q1:=COUNT(C<O,5)<=3;
Q2:=C/REF(C,5)<0.85;
Q3:=(MA(CLOSE,5)-C)/MA(CLOSE,5)<0.2;
Q4:=MA(C,20)>REF(MA(C,20),1);
Q5:=(REF(C,1)-C)/REF(C,1)>0.09;
XG: Q1 AND Q2 AND Q3 AND Q4 AND NOT (Q5);