DIF:=EMA(C,12)-EMA(C,26);DEA:=EMA(DIF,9);MACD:=2*(DIF-DEA);苦尽甘来:C<BBI AND EVERY(macd>0,7) AND REF(C<O,1) AND REF(C<O,2) AND C<O AND C>=MA(C,20);