臀总量能，观察20、60天量能的一半，by J.Boy
MA20:MA(V,20);
MA60:MA(V,60);
STICKLINE(VOL<MA60/2,MA60,MA60+MA60/15,2,0),colorgreen;
STICKLINE(VOL<MA20/2,MA20,MA20-MA20/15,2,0),coloryellow;
