MA200:=EMA(CLOSE,20);
MA400:=EMA(CLOSE,40);
MA600:=EMA(C,60);
AA:=BArslAST(MA400>MA600 AND (MA200=MA400 OR MA200>MA400));
BB:=REF(COUNT(C<MA600,AA)=AA,1);
CC:=crOSS(C,MA600) AND vol>MA(VOL,5) AND (C-REF(C,1))/REF(C,1)*100>3;
梅开二度:BB AND CC AND C>REF(C,1)*1.05;