N:=5;M:=20;
RSV:=(CLOSE-LLV(LOW,N))/(HHV(HIGH,N)-LLV(LOW,N))*100;
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快:SMA(RSV,3,1),COLORGREEN;
慢:SMA(快,3,1);
极强:80,COLORRED;
中线:50,COLORLIBLUE;
极弱:20,COLORGREEN;
强势:IF(快>慢,快,DRAWNULL),LINETHICK2,COLORRED;
快慢比:快/慢,NODRAW;
介入:IF(快<M,30,0),COLORLIRED;