macd两次金叉

LONG:=26;
SHORT:=12;
m:=9;
DIFF:= EMA(CLOSE,SHORT) - EMA(CLOSE,LONG);
DEA:= EMA(DIFF,M);
MACD:= 2*(DIFF-DEA), COLORSTICK;
macd1:=macd+100;

oZ:=COUNT(CROSS(diff,dea) and diff>0,BARSLAST(cross(diff,dea) and diff<0));
choo:cross(diff,dea) and oz=1;