rv:=(close-llv(low,27))/(hhv(high,27)-llv(low,27))*100;rg:=(close-llv(low,5))/(hhv(high,5)-llv(low,5))*100;kk:=ema(sma(rg,3,1),2);dd:=sma(kk,3,1);var44:=sma(rv,3,1);var55:=sma(var44,3,1);cross(var44,var55) and cross(kk,dd); 20210311
var2:=(2*close+high+low)/4;var4:=llv(low,5);var5:=hhv(high,4);:=ema((var2-var4)/(var5-var4)*100,4);:=ema(0.667*ref(散户,1)+0.333*散户,2);吸:cross(散户,**) and 散户<30;