MA2:=EMA(CLOSE,50);
CC:=crOSS(MA1,MA2);
BB:=BArslAST(CC);
CC1:=CROSS(MA1,L) AND C MA1 AND BB AND MA1 MA2 AND MA2 REF(MA2,1);
CC2:=CROSS(MA2,L) AND C MA2 AND BB AND MA1 MA2 AND MA2 REF(MA2,1);
选股:CC OR CC1 OR CC2;