MACD顶背离的选股预警公式指标。 编写条件：编写方法：DIFF:=EMA(CLOSE,12)-EMA(CLOSE,26);DEA:=EMA(DIFF,9);:=(DIFF-DEA)*2;B:=BARSLAST(REF(OSS(DEA,DIFF),1));顶背:REF(H,B+1)<H AND DIFF<REF(DIFF,B+1) AND CROSS(DEA,DIFF);