N:=20; DW:=EMA(SMA((CLOSE-LLV(LOW,100))/(HHV(HIGH,100)-LLV(LOW,100))*100,8,1),3); DIFF:=EMA(CLOSE,12)-EMA(CLOSE,27); DEA:=EMA(DIFF,9); 选股:CROSS(DIFF,DEA) AND DIFF<-0.1 AND DW<N;
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