MACD0轴之上二次金叉的预警公式

求macd0轴之上金叉然后死叉然后再金叉，也就是二次金叉的预警公式！要通达信的！谢谢老师！

 

DIFF:=EMA(CLOSE,5)-EMA(CLOSE,26);
DEA:=EMA(DIFF,50);
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;