AA:=IF(ma(C,30)>REF(MA(C,30),1),MA(C,30),DRAWNULL),LINETHICK2,COLORMAGENTA; 给:=EMA(C,2),COLORRED; 力:=EMA(SLOPE(C,9)*20+C,37); 买:=crOSS(给,力) AND AA; 买进:买;