布林开口副图选股源码分享，低位开口关注

参数：n 3 50 7 m 1 100 6

源码

MID:=MA(CLOSE,20);

UPPER:=MID+2*STD(CLOSE,20);

LOWER:=MID-2*STD(CLOSE,20);

AA:=(UPPER-REF(UPPER,1))*1000/REF(UPPER,1);

CROSS(H,UPPER) AND AA>M AND DYNAINFO(17)>0 AND EVERY(REF(UPPER,1)>REF(H,1),N);