RSV1:=(CLOSE-LLV(LOW,21))/(HHV(HIGH,21)-LLV(LOW,21))*100;
RSV2:=(CLOSE-LLV(LOW,37))/(HHV(HIGH,37)-LLV(LOW,37))*100;
短线:=SMA(SMA(RSV1,3,1),3,1)+3*STD(CLOSE,21),COLOR00FF00;
中线:=SMA(RSV2,5,1)+2*STD(CLOSE,37),COLORRED;
RSV3:=(CLOSE-LLV(LOW,55))/(HHV(HIGH,55)-LLV(LOW,55))*100;
长线:=SMA(RSV3,5,1),COLORYELLOW;
千载难逢:crOSS(短线,长线) AND 长线<18 AND 长线>REF(长线,1) OR CROSS(长线,5);