布林中线:MA(CLOSE,20),NODRAW; 布林上线:布林中线+2*STD(CLOSE,20) COLORGREEN; 布林下线:布林中线-2*STD(CLOSE,20) COLORRED;
IF(布林中线>REF(布林中线,1),布林中线,DRAWNULL),COLORWHITE,LINETHICK2; IF(布林中线<REF(布林中线,1),布林中线,DRAWNULL),COLORGRAY,DOTLINE,LINETHICK1;
