指标通过价格与成交量的关系，结合均线系统，识别股票的短期交易机会。"抓量"关注于股价突破短期均线且成交量显著放大时的机会；"暗盘"则捕捉股价在接近中期均线前的短暂调整阶段；"加速"强调股价有效突破长期均线并保持上升趋势的强势信号；而"三根尖"用于发现股价触底反弹的早期迹象。操作策略建议依据不同信号的特点进行灵活配置，比如利用"抓量"和"加速"追求快速上涨的机会，用"暗盘"和"三根尖"寻找反转或调整结束的入场点。
VOL_M:=5;
VOL_RATE:=1.2;
{核心均线定义，用于信号判断}
妖线:=MA(C,10);
强势线:=MA(C,20);
牛熊线:=MA(C,60);
{辅助数据计算}
量比:=VOL/REF(MA(VOL,VOL_M),1);
换手率:=VOL/CAPITAL*100;
涨幅:=C/REF(C,1)-1;
{信号条件定义}
抓量条件:=CROSS(C,妖线) AND 量比>VOL_RATE AND C>强势线;
暗盘条件:=LONGCROSS(C,强势线,3);
加速条件:=CROSS(C,牛熊线) AND MA(C,5)>MA(C,10);
三根尖条件:=COUNT(L=LLV(L,5),3)=3;
{信号赋值，用于绘制柱状线}
抓量:IF(抓量条件,1,0),COLORRED,NODRAW;
暗盘:IF(暗盘条件,1,0),COLORGREEN,NODRAW;
加速:IF(加速条件,1,0),COLORYELLOW,NODRAW;
三根尖:IF(三根尖条件,1,0),COLORWHITE,NODRAW;
{绘制信号柱状线}
STICKLINE(抓量条件,0,1,3,0),COLORRED;
STICKLINE(暗盘条件,0,1,3,0),COLORGREEN;
STICKLINE(加速条件,0,1,3,0),COLORYELLOW;
STICKLINE(三根尖条件,0,1,3,0),COLORWHITE;
{信号文字标注}
DRAWTEXT(抓量条件,0.9,'抓量'),COLORRED,LINETHICK2;
DRAWTEXT(暗盘条件,0.9,'暗盘'),COLORGREEN,LINETHICK2;
DRAWTEXT(加速条件,0.9,'加速'),COLORYELLOW,LINETHICK2;
DRAWTEXT(三根尖条件,0.9,'三根尖'),COLORWHITE,LINETHICK2;
