MACD第一次交叉

模型編寫如下：
DIFF := EMA(CLOSE,12) - EMA(CLOSE,26);//短周期與長周期的收盤價的指數平滑移動平均值做差。
DEA  := EMA(DIFF,9);//DIFF的M個周期指數平滑移動平均
N1:=BARSLAST(CROSS(DIFF,0));
N2:=BARSLAST(CROSS(0,DIFF));
DIFF>0&&COUNT(CROSS(DIFF,DEA),N1)<=1&&CROSS(DIFF,DEA);//第一次金叉
DIFF<0&&COUNT(CROSS(DEA,DIFF),N1)<=1&&CROSS(DEA,DIFF);//第一次死叉