零上二次金叉

DIF:=EMA(CLOSE,12)-EMA(CLOSE,26);

DEA:=EMA(DIF,9);

A0:=CROSS(DIF,DEA);

A:=A0 AND DIF<0;

FT:=BARSLAST(A);

B:=COUNT(A0,FT);

第二个金叉:DIF>0 AND DEA>0 AND A0 AND B>=2;