波段顶底，箱体震荡中的高抛低吸，顶部区服务高抛，底部区域低吸 XA_1:=(CLOSE-LLV(LOW,13))/(HHV(HIGH,13)-LLV(LOW,13))*100;
XA_2:=SMA(XA_1,3,1);
XA_3:=SMA(XA_2,3,1);
XA_4:=3*XA_2-2*XA_3;
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STICKLINE(XA_4>REF(XA_4,1),HHV(XA_4,3),LLV(XA_4,3),0,0),colorred;
STICKLINE(XA_4>REF(XA_4,1),XA_4,REF(XA_4,1),3,0),colorred;
STICKLINE(XA_4<REF(XA_4,1),HHV(XA_4,3),LLV(XA_4,3),0,0),COLORFFFF80;
STICKLINE(XA_4<REF(XA_4,1),XA_4,REF(XA_4,1),3,0),COLORFFFF80;
高抛线:100,colorgreen,LINETHICK3;
低吸线:0,colorred,LINETHICK3;
DRAWTEXT(ISLASTBAR,高抛线,24),colorgreen;
DRAWTEXT(ISLASTBAR,低吸线,25),colorred;
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