DIFF:=EMA(CLOSE,12)-EMA(CLOSE,27);DEA:=EMA(DIFF,9);MACD:=2*(DIFF-DEA), COLORSTICK,LINETHICK2;A1:=BARSLAST(REF(CROSS(DIFF,DEA),1));底背离:REF(CLOSE,A1+1)>CLOSE AND DIFF>REF(DIFF,A1+1) AND CROSS(DIFF,DEA);