VAR1:=(CLOSE-LLV(LOW,20))/(HHV(HIGH,20)-LLV(LOW,20))*100;
	VAR2:=SMA(VAR1,20,1);
	VAR3:=SMA(VAR2,15,1);
	VAR4:=(3*VAR2+2*VAR3)/4;
	VAR5:= REF(VAR4,1);
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	A:SMA(MAX(VAR4-VAR5,0),2,1)/SMA(ABS(VAR4-VAR5),2,1)*100;
	B:MA(A,10);
	介入:IF(CROSS(A,B),50,0);
	