var1:=(close-llv(low,13))/(hhv(high,13)-llv(low,13))*100;var2:=ema(var1,20);var3:=ema(var2,20);var4:=3*var2-2*var3;势:=ema(var4,5);var5:=llv(low,10);v**:=hhv(high,25);决策线:=ema((close-var5)/(v**-var5)*100,4);xg:(决策线<20 and 决策线>ref(决策线,1) and ref(决策线,1)