指标基于价格加权均值计算多空能量，通过两条EMA差值的二次平滑判断趋势。红色柱和“短买”提示为短期买入信号，黄色柱和“备钱”提示为趋势转折信号（基于ZIG函数）。强弱分界0轴辅助判断多空方向。
VAR1:=(CLOSE*2+HIGH+LOW)/4;
SK: EMA(VAR1,13)-EMA(VAR1,21);
SD: EMA(SK,2);
多方能量: 2*(SK-SD)*3.8, LINESTICK;
空方能量:= (-2)*(SK-SD)*3.8, LINESTICK;
强弱分界:= 0, CIRCLEDOT;
STICKLINE(CROSS(SK,SD),SK,0,1,0),LINETHICK2,COLORRED;
DRAWTEXT((CROSS(SK,SD)),SK,'←短买'),LINETHICK2,COLORRED;
STICKLINE((CROSS(ZIG(3,8),REF(ZIG(3,8),1))),SK,0,1,0),LINETHICK2,COLORYELLOW;
DRAWTEXT(CROSS(ZIG(3,8),REF(ZIG(3,8),1)),SK,'←备钱'),LINETHICK2,COLORYELLOW;
DRAWICON(CROSS(ZIG(3,8),REF(ZIG(3,8),1)),SK,9);
DRAWICON((CROSS(SK,SD)),SK,1);
