INPUT:SHORT(12),LONG(26),M(9),N(55);
DIFF:EMA(CLOSE,SHORT) - EMA(CLOSE,LONG);
DEA:EMA(DIFF,M);
MACD:2*(DIFF-DEA), COLORSTICK;
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底背离:LLV(L,N)=L AND NOT(LLV(MACD,N)=MACD);
顶背离:HHV(H,N)=H AND NOT(HHV(MACD,N)=MACD);