N:=10;P:=2;中轨:MA(CLOSE,N),COLORYELLOW,DOTLINE; 上轨:中轨+P*STD(CLOSE,N),COLORLIMAGENTA,DOTLINE,LINETHICK1; 下轨:中轨-P*STD(CLOSE,N),COLORLICYAN,DOTLINE,LINETHICK1;