DIFF :=EMA(CLOSE,12) - EMA(CLOSE,26);
DEA :=EMA(DIFF,9);
MACD :=2*(DIFF-DEA);
JCCOUNT:=COUNT(CROSS(DIFF,DEA),BARSLAST(DEA =0));
二次金叉:=CROSS(DIFF,DEA) AND DEA 0 AND COUNT(JCCOUNT=2,21)=1;
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A1:=BARSLAST(REF(CROSS(DIFF,DEA),1));
底背离:=REF(CLOSE,A1+1) CLOSE AND DIFF REF(DIFF,A1+1) AND CROSS(DIFF,DEA);
MACD 0 AND 底背离;