LL:=EMA (100*(C-LLV(LOW,34))/(HHV(H,34)-LLV(LOW,34)),3);DRAWBAND(LL,RGB(50,250,11),10,RGB(255,0,0));DRAWBAND(90,0,10,0);警示线:EMA (100*(C-LLV(LOW,34))/(HHV(H,34)-LLV(LOW,34)),3),colormagenta;:90,POINTDOT;安全区:10,POINTDOT;