dV1:=(CLOSE-LLV(LOW,14))/(HHV(HIGH,14)-LLV(LOW,14))*100;
dV2:=(CLOSE-LLV(LOW,30))/(HHV(HIGH,30)-LLV(LOW,30))*100;
短线c:=SMA(SMA(dV1,3,1),3,1)+3*STD(CLOSE,14);
中线b:=SMA(dV2,5,1)+2*STD(CLOSE,14);
dV3:=(CLOSE-LLV(LOW,55))/(HHV(HIGH,55)-LLV(LOW,55))*100;
长线s:=SMA(dV3,5,1);
抄底s:短线c<20 AND 中线b<20 AND 长线s<20;