创新低:=20;DIF:=EMA(CLOSE,12)-EMA(CLOSE,26);DEA:=EMA(DIF,9);MACD:=(DIF-DEA)*2;绿柱缩短:=macd>REF(MACD,1) AND MACD<0;连续缩短:=BARSLASTCOUNT(绿柱缩短)>1;新底:=连续缩短;背离买点:MACD>REF(MACD,创新低) AND 新底 AND MACD<0;