MACD为什么金叉不显示红色箭头

编写要求：

解答：

?网友求助：

DIFF :(EMA(CLOSE,12)-EMA(CLOSE,26))*100/EMA(CLOSE,26),COLORRED;
DEA : EMA(DIFF,9),COLORRED,LINETHICK1;
DIF:IF(DIFF ADEA:IF(DEA MACD:2*(DIFF-DEA), COLORSTICK,LINETHICK1;
A1:=BARSLAST(REF(CROSS(DIFF,DEA),1));

STICKLINE(MACD0,0,MACD,0,0),COLORFF00FF;
STICKLINE(MACD STICKLINE(MACD>REF(MACD,1)AND MACD,0,MACD,0,0),COLORYELLOW;
STICKLINE(MACD>REF(MACD,1)AND MACD>0,0,MACD,0,0),COLORRED;

向上:=IF(DIF>=REF(DIF,1),DIF,DRAWNULL),LINETHICK2,COLORRED;
向下:=IF(DIF DRAWICON(CROSS(DIF,DEA) AND DIF>REF(DIF,1) AND DEA<0,DIF,1)AND(A1);
DRAWICON(CROSS(DEA,DIF) AND DIF0,DEA,2);

请问为什么金叉不显示红色箭头？请高手做一个金叉选股公式（红色箭头）
?

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