MACD零轴上第一次死叉的选股公式

编写要求：

MACD零轴上第一次死叉的选股公式

解答：

DIFF:="MACD.DIFF"(26,12,9);
DEA:="MACD.DEA"(26,12,9);
上穿:=BARSLAST(CROSS(DIFF,0))+1;
TJ1:=COUNT(DIFF>DEA AND DIFF>0,上穿)=上穿;
TJ2:=CROSS(DEA,DIFF) AND DIFF>0;
XG:REF(TJ1,1) AND TJ2;