请老师帮做个低点选股趋势线:SMA(EMA(((C+L)/2-LLV(L,21))/(HHV((H+C)/2,21)-LLV(L,21))*100,3),7,1)-(13),LINETHICK2,COLORF0F000;判断:=(SMA(((C+L)/2-LLV(L,21))/(HHV((H+C)/2,21)-LLV(L,21))*100,2,1)-8);强势区:判断>趋势线,COLOR9800FF;STICKLINE(强势区,30,40,4,2),COLOR9800FF;弱势区:判断<趋势线,COLORYELLOW;STICKLINE(弱势区,30,40,4,2),COLORYELLOW;STICKLINE(FILTER(CROSS(判断,趋势线)=1 OR 判断>REF(判断,1),10) AND 判断<25>=REF(趋势线,1)AND 趋势线<0 VAR2:=1;VAR3: REF(HIGH,1)*1.1;VAR4:=HIGH*1.1;VAR5: CAPITAL;VAR6:=REF(LOW,1)*0.9;VAR7: LOW*0.9;VAR8:=(VAR7*VOL+VAR6