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源码如下：
RSV1:=(CLOSE-LLV(LOW,20))/(HHV(HIGH,20)-LLV(LOW,20))*100;
RSV2:=(CLOSE-LLV(LOW,38))/(HHV(HIGH,38)-LLV(LOW,38))*100;
短线:=SMA(SMA(RSV1,3,1),3,1)+3*STD(CLOSE,20),COLOR00FF00;
中线:=SMA(RSV2,5,1)+2*STD(CLOSE,38),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);
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