VAR9:=CLOSE-REF(CLOSE,5);
VARA:=EMA(EMA(VAR9,5),5)/EMA(EMA(ABS(VAR9),5),5);
VARC:=EMA(EMA(VAR9,20),20)/EMA(EMA(ABS(VAR9),20),20);
卖出:=IF(VARA>0 AND CROSS(VARC,VARA),90,100);
买线:=EMA(CLOSE,2);
卖线:=EMA(SLOPE(CLOSE,21)*20+CLOSE,42);
买入:CROSS(买线,卖线);

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