��DIF:=MACD.DIF#WEEK; ��DEA:=MACD.DEA#WEEK; ��MACD:=MACD.MACD#WEEK; �ܽ��:=CROSS(��DIF,��DEA); ��о:EXIST(�ܽ��,4) AND BARSLAST(�ܽ��)>0 AND CLOSE<REF(CLOSE,BARSLAST(�ܽ��)) AND CLOSE<REF(CLOSE,1) AND CLOSE<OPEN;