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)>=1.018OR CROSS(EMA30,EMA120) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018OR CROSS(EMA60,EMA90) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018OR 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)>=1.018OR CROSS(EMA60,EMA250) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018OR CROSS(EMA90,EMA120) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018OR 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);