超长趋势线:=3*sma((close-llv(low,120))/(hhv(high,120)-llv(low,120))*100,5,1)-2*sma(sma((close-llv(low,120))/(hhv(high,120)-llv(low,120))*100,5,1),3,1);选股:超长趋势线>90 or cross(超长趋势线,90);根据你的本意,上面的公式是选出的是接近于顶部的股票;下面,是我根据这个公式,修改后,选出的是底部确定的股票:a1:=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); a2:=3*sma((close-llv(low,60))/(hhv(high,60)-llv(low,60))*100,5,1)-2*sma(sma((close-llv(low,60))/(hhv(high,60)-llv(low,60))*100,5,1),3,1); a3:=3*sma((close-llv(low,120))/(hhv(high,120)-llv(low,120))*100,5,1)-2*sma(sma((close-llv(low,120))/(hhv(high,120)-llv(low,120))*100,5,1),3,1);选股:cross(a1,7) and a2>a3 and a1>a2; 20210311