MACD 底背离和双底背离选股公式 底背离 ,通达信版、同花顺版DIFF:=EMA(CLOSE,12) - EMA(CLOSE,26);DEA:=EMA(DIFF,9);MACD:=2*(DIFF-DEA);QZQ:=BARSLAST(REF(MACD,1)0);QM:=LLVBARS(MACD,QZQ+20);MQDZ:=IF(QMQZQ,REF(MACD,QM),0);XG1:=MACDMQDZAND CLOSE=LLV(CLOSE,QZQ+20) AND MQDZREF(MACD,1);双底背离 ,通达信版、同花顺版DIFF:=EMA(CLOSE,12) - EMA(CLOSE,26);DEA:=EMA(DIFF,9);MACD:=2*(DIFF-DEA);QZQ:=BARSLAST(REF(MACD,1)0);QM:=LLVBARS(MACD,QZQ+20);MQDZ:=IF(QMQZQ,REF(MACD,QM),0);QF:=LLVBARS(DIFF,QZQ+20);DQDZ:=IF(QFQZQ,REF(DIFF,QF),0);XG1:=MACDMQDZ AND DIFFDQDZAND CLOSE=LLV(CLOSE,QZQ+20) AND MQDZREF(MACD,1);