把里面这个红箭头头改成选股

编写要求：

EMA250:EMA(C,250),COLORBLUE,LINETHICK2; SS:=CROSS(EMA30,EMA60) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(EMA30,EMA120) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(EMA60,EMA90) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(EMA30,EMA90) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 {AND CROSS(EMA30,EMA120)}; DRAWICON(SS,L-0.04,1); DD:=CROSS(EMA60,EMA90) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(EMA60,EMA250) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(EMA90,EMA120) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(EMA60,EMA120) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 AND CROSS(EMA30,EMA250); {DD:=CROSS(EMA30,EMA250);} DRAWICON(DD,L-0.04,3);

解答：

?EMA30:=EMA(C,30);

EMA60:=EMA(C,60);

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