請教老師macd表達問題

 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

DRAWTEXT(CROSS(DIFF,DEA),L,'買入');

DRAWTEXT(CROSS(DEA,DIFF),H,'賣出');

模型僅供參考