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A:=(3*C+L+O+H)/6;
X:=(20*A+19*REF(A,1)+18*REF(A,2)+17*REF(A,3)+16*REF(A,4)+15*REF(A,5)+
14*REF(A,6)+13*REF(A,7)+12*REF(A,8)+11*REF(A,9)+10*REF(A,10)+9*REF(A,11)+8*REF(A,12)
+7*REF(A,13)+6*REF(A,14)+5*REF(A,15)+4*REF(A,16)+3*REF(A,17)+2*REF(A,18)+
REF(A,20))/210;
主力成本:EMA(X,13),COLORFF00FF,LINETHICK0;
短期底部:LLV(HIGH,30),LINETHICK2,COLORFFCC00;
黄金线:(EMA(C,15)),POINTDOT,LINETHICK4,COLORYELLOW;
生命线:(MA(C,25)),LINETHICK2,COLORMAGENTA;
FF:=EMA(CLOSE,3);
MA15:=EMA(CLOSE,15);
DRAWTEXT(CROSS(FF,MA15),(LOW * 0.99),'买入'),COLOR00FFFF;
DRAWTEXT(CROSS(MA15,FF),(HIGH * 1.02),'卖出'),COLOR00FF00;