编写要求：
KDJ金叉且MACD二次翻红的选股公式
公式在线网解答：
RSV:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
K:=SMA(RSV,3,1);
D:=SMA(K,3,1);
KDJ金叉:=CROSS(K,D);
DIFF:=EMA(CLOSE,12)-EMA(CLOSE,27);
DEA:=EMA(DIFF,9);
JCCOUNT:=COUNT(CROSS(DIFF,DEA),BARSLAST(DEA>=0));
MACD二次金叉:=CROSS(DIFF,DEA) AND DEA<0 AND COUNT(JCCOUNT=2,21)=1;
KDJ金叉 AND MACD二次金叉;
