{通达信已通过测试}{选股}var1:=(2*close+high+low)/4;var2:=llv(low,34);var3:=hhv(high,34);xx:=ema((var1-var2)/(var3-var2)*100,13);yy:=ema(0.667*ref(xx,1)+0.333*xx,2);选股:cross(xx,yy) and xx<20;----------------------------------------------{2.百分之三选股}var1:=(2*close+high+low)/4;var2:=llv(low,34);var3:=hhv(high,34);xx:=ema((var1-var2)/(var3-var2)*100,13);yy:=ema(0.667*ref(xx,1)+0.333*xx,2);百分之三:cross(xx,20) and yy<xx; 20210311