请各位老师帮忙编一个MACD零上第二次金叉的选股公式

MACD零上第二次金叉

{MACD零上第二次金叉} DIFF:=EMA(CLOSE,12)-EMA(CLOSE,26); DEA:=EMA(DIFF,9); A0:=CROSS(DIFF,DEA); A:=A0 AND DIFF<0; FT:=BARSLAST(A); B:=COUNT(A0,FT); 第二个金叉:DIFF>0 AND DEA>0 AND A0 AND B<2;