低买高卖公式，精准的捕捉高低点。附图指标，无未来。
 公式很简单，看图就知道怎么操作。
 多了不说，直接上图上公式

VAR1:=REF(CLOSE,1);
VAR2:=SMA(MAX(CLOSE-VAR1,0),7,1)/SMA(ABS(CLOSE-VAR1),7,1)*100,COLORYELLOW;
VAR21:IF(VAR2<20,40,20),COLORRED;
VAR22:IF(VAR2>80,60,80),COLORFFFF50;
VAR2↑:STICKLINE(FILTER(REF(VAR2,1)<20 AND VAR2>REF(VAR2,1),5),20,40,2,0),COLORRED;
VAR2↓:STICKLINE(FILTER(REF(VAR2,1)>80 AND VAR2<REF(VAR2,1),5),60,80,2,0),COLORFFFF50;
DRAWTEXT(FILTER(REF(VAR2,1)<20 AND VAR2>REF(VAR2,1),5),40 ,'买入' ),COLORYELLOW;
DRAWTEXT(FILTER(REF(VAR2,1)>80 AND VAR2<REF(VAR2,1),5),60 ,'卖出' ),COLORFFFFFF;
80,COLORGREEN;
20,COLORRED;
{其实此公式的买点是最佳买点2的1号买点，卖点是最佳买点主图的卖点。}

{以下为选股公式}
VAR1:=REF(CLOSE,1);
VAR2:=SMA(MAX(CLOSE-VAR1,0),7,1)/SMA(ABS(CLOSE-VAR1),7,1)*100;
FILTER(REF(VAR2,1)<20 AND VAR2>REF(VAR2,1),5)