DIF:=EMA(CLOSE,12)-EMA(CLOSE,26);DEA:=EMA(DIF,9);MACD:=(DIF-DEA)*2;取值1:=MACD>=-0.05 AND MACD<=0.05;取值2:EVERY(取值1,20);取值3:REF(取值2,1)=1 AND 取值2=0;