X:=CLOSE/REF(LLV(LOW,21),5)< 1;关注:=IF(X,1,0);T3:=IF(CODELIKE('300'),0,1);T4:=NOT(NAMELIKE('S') OR NAMELIKE('*S')) ;吃货:CROSS(C,REF(LLV(LOW,21),5)) AND C/REF(C,1)>1.02 AND T3 AND T4;