CPBS操盘BS点指标源码如下：

BU:=CROSS(HIGH,SAR(3,1,20));
SEL:=CROSS(SAR(3,1,20),LOW);
DRAWTEXT(BU,LOW,'B'),COLORMAGENTA,LINETHICK2;
DRAWTEXT(SEL,1.01*HIGH,'S'),COLORGREEN,LINETHICK2;