判断波段顶底，及时发觉多空能量强弱信号，须和均线、成交量及其他指标配合使用，提高判断正确概率
BD5:100*(C-EMA(C,5))/EMA(C,5),colorwhite,LINETHICK2;
BD10:100*(C-EMA(C,10))/EMA(C,10),coloryellow,LINETHICK1;
BD20:100*(C-EMA(C,20))/EMA(C,20),COLORDB70DB,LINETHICK1;
BD30:100*(C-EMA(C,30))/EMA(C,30),colorred,LINETHICK2;
BD60:100*(C-EMA(C,60))/EMA(C,60),colorgreen,LINETHICK2;
临界点:0,colorcyan,DOTLINE;
