30分钟与日线的选股在选股周期设置。选股公式如下: 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);选股:REF(趋势,1)<8 AND REF(趋势,2)>REF(趋势,1) AND 趋势>REF(趋势,1);