:MA(CLOSE,20)COLORYELLOW,NODRAW;日线布林上线:日线布林中线+2*STD(CLOSE,20) COLORGREEN,DOTLINE,NODRAW;日线布林下线:日线布林中线-2*STD(CLOSE,20) COLORRED,DOTLINE,NODRAW;布林中线:MA(CLOSE,20*4.2)COLORWHITE,LINETHICK2,NODRAW;周线布林上线:周线布林中线+2*STD(CLOSE,20*4.2) COLORGREEN,LINETHICK2;周线布林下线:周线布林中线-2*STD(CLOSE,20*4.2) COLORRED,LINETHICK2;IF(周线布林中线>REF(周线布林中线,1),周线布林中线,DRAWNULL),COLORWHITE,LINETHICK2;IF(周线布林中线<REF(周线布林中线,1),周线布林中线,DRAWNULL),COLORGRAY,DOTLINE,LINETHICK1;收口:=(周线布林上线-周线布林下线)/周线布林下线<=0.25;