将（一线金叉）改选股公式

编写要求：

求助.老师将.（一线金叉.）..改选股公式..谢谢...将公式中的..(EMA30..白线)..上穿..(EMA250..蓝线).时.改选股公式.谢谢....　EMA30:EMA(C,30),COLORWHITE,LINETHICK2; EMA60:EMA(C,60),COLORFF00FF; EMA90:EMA(C,90),COLORYELLOW; EMA120:EMA(C,120),COLORFFCC66; EMA250:EMA(C,250),COLORBLUE; 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),COLORWHITE,LINETHICK2;
EMA250:=EMA(C,250),COLORBLUE;
XG:CROSS(EMA30,EMA250);