通达信真正的抄底操盘指标，无任何未来函数，成功率85%以上！！

趋势:=3*SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1)-2*SMA(SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1),3,1);
见底:=10;
短期底部:=CROSS(趋势,见底);
RR8:=MA(CLOSE,27);
RR9:=(CLOSE-RR8)/RR8*100;
RRA:=MA(RR9,2);
RRB:=BARSLAST(CROSS(-10,RRA)=1);
RRD:=RRA<-10 AND RRB>3;
SMDB:RRD AND 短期底部;