把精确控盘指标改选股预警

编写要求：

20,POINTDOT; 80,POINTDOT; VAR1:=(2*C+H+L)/4; VAR2:=LLV(LOW,33); VAR3:=HHV(HIGH,33); AA:EMA((VAR1-VAR2)/(VAR3-VAR2)*100,10),COLORRED; BB:EMA(AA,10)COLOR00FFFF; DRAWBAND(AA,RGB(200,0,0),BB,RGB(0,200,200)); DRAWICON(CROSS(AA,BB),BB-13,1); DRAWICON(CROSS(BB,AA),AA+13,2); STICKLINE(AA<20,2,7,1,1),COLORFF00FF; STICKLINE(AA>80,92,97,1,1),COLOR00FFFF; IF(AA>=BB,100,108); IF(AA=BB,105,1); DRAWICON(BB>AA,-8,2); STICKLINE( CROSS(AA,BB),-8,15,1,0),COLORRED,LINETHICK2; STICKLINE( CROSS(AA,BB),1,6,1,0),COLOR00FFFF,LINETHICK2; DRAWICON(CROSS(AA,BB),13,13); STICKLINE( CROSS(BB,AA),108,85,1,0),COLOR00FF00,LINETHICK2; STICKLINE( CROSS(BB,AA),94,99,1,0),COLORFF00FF,LINETHICK2; DRAWICON(CROSS(BB,AA),85,14); 选股条件：出现红球拐点选股

解答：

?VAR1:=(2*C+H+L)/4;

VAR2:=LLV(LOW,33);