① 請老師幫忙寫個通達信選股公式(指標中出現二次金叉,即出現帶鑽石的金叉信號)
A:=EMA(CLOSE,9)-EMA(CLOSE,18);B:=EMA(A,7);JCCOUNT:=COUNT(CROSS(A,B),BARSLAST(B>=0));XG:CROSS(A,B) AND B<0 AND COUNT(JCCOUNT=2,21)=1;