MACD底部（0轴以下）N金叉选股

DIFF:=EMA(CLOSE,12)-EMA(CLOSE,26);
DEA:=EMA(DIFF,9);
MACD:=2*(DIFF-DEA);
JCCOUNT:=COUNT(CROSS(DIFF,DEA),BARSLAST(DEA>=0));
多次金叉:=CROSS(DIFF,DEA) AND DEA<0 AND COUNT(JCCOUNT=N,22)=1;
A1:=BARSLAST(REF(CROSS(DIFF,DEA),1));
底背离:=REF(DIFF,A1+1)<DIFF AND REF(DEA,A1+1)<DEA AND REF(L,A1+1)>L AND CROSS(DIFF,DEA);
XG:多次金叉 AND 底背离;
{N取值范围1~8};