通达信极限短线副图指标

N:=20;
 B1:=MA(CLOSE,N);
极限短线:100*(CLOSE-B1)/STD(CLOSE,N),COLORYELLOW;
生命线:EMA(极限短线,3),COLORRED,LINETHICK2;
 B2:100;
 B3:-100;
 B4:170;
 B5:-170;