影线:=(MAX(C,O)-MIN(C,O))*4<(MIN(C,O)-L); 振幅:=(H-L)/REF(C,1)*100>5; 跌幅:=(C-REF(C,1))/REF(C,1)*100; 影线 AND 振幅 AND (SUM(跌幅,5)<-10 OR SUM(跌幅,10)<-20);