%
%---------------------------------------------------------------------------------------------------------- %
\documentclass[11pt,a4paper,reqno,fleqn]{amsbook} %
%---------------------------------------------------------------------------------------------------------- %
%
\usepackage[dotinlabels]{titletoc} % more advanced but essential here
\usepackage[explicit]{titlesec} %
\usepackage[english]{babel} %
\usepackage{mathptmx} % place after txfonts
\usepackage[automark]{scrpage2}
\usepackage{textpos}
\usepackage{blindtext}
\usepackage[bookmarks=true]{hyperref} % For creating hyperlinks in cross references
\usepackage{setspace}
\usepackage{ulem} % for underlining - keep
\let\chead\undefined % un-define
\let\cfoot\undefined % un-define
\usepackage[Lenny]{fncychap} %
\usepackage{fancyhdr} %
\usepackage{xcolor,colortbl} % define colors, color table, order important
\usepackage[flequ]{mathtools} % necessary
\usepackage[position=below,labelfont={bf},textfont=normal]{caption,subfig} % 08_03_2014 (subfig from package)
\usepackage{imakeidx}
\special{papersize=210mm,297mm} % printer choice
% ----------- lengths ------------------------------------------------------------------------------- %
\setlength{\paperwidth}{175mm} % width of book [165mm] - set in geometry
\setlength{\textwidth}{135mm} % width of text [127mm]
\setlength{\paperheight}{235mm} % height of book [205mm]
\setlength{\topmargin}{-22mm} % clear above header [-22mm]
\setlength{\headheight}{16mm} % height of head [15mm]
\setlength{\headsep}{4mm} % between header and text [3mm]
\setlength{\textheight}{195mm} % height of text inclusive of header/footer [172]
% ------------ paragraphs --------------------------------------------------------------------------- %
\setlength{\parskip}{3.4pt} % gap between paragraphs [3pt]
\setlength{\parindent}{0pt} % indentation of paragraphs
\makeatletter % only needed in preamble
\renewcommand\small{\@setfontsize\small{10}{11}}
\renewcommand\normalsize{\@setfontsize\normalsize{11}{13}}
\renewcommand\large{\@setfontsize\large{12.2}{14}}
\renewcommand\Large{\@setfontsize\Large{14.4}{16}}
\makeatother
\renewcommand{\ULthickness}{1.0pt}
\def\mymediumspace{\kern 0.4pt}
\def\mythickspace{\kern 0.6pt}
\def\mygraphicspace{\kern 0.75pt}
\def\comma{\kern 0.4pt}
\def\figtab{\kern 0.7pt} % layout of fig/table numbering - good 22_02_2014
% ------------------------------------- COUNTERS TO SET GLOBALLY ------------------------------------ %
\setcounter{secnumdepth}{4} %
\setcounter{section}{1} % was 1
\setcounter{tocdepth}{2} % depth in contents lists
\setcounter{equation}{2}
\setlength{\linewidth}{\textwidth}
\newcommand\Hrule{\noindent\rule{\linewidth}{2.5pt}}
\setlength{\fboxsep}{3pt} %
\setlength{\fboxrule}{0.7pt} %
\makeatletter
\titlelabel{\thetitle\enspace}
\patchcmd{\chapter}{\if@openright\cleardoublepage\else\clearpage\fi}{}{}{}
\renewcommand\tocsection[3]{\indentlabel{\hspace{0pt}#1 \hspace{0pt}#2\hspace{6.4pt}}#3} %
\renewcommand\tocsubsection[3]{\indentlabel{\hspace{0pt}#1 \hspace{0pt}#2\hspace{6.4pt}}#3} %
\renewcommand{\thechapter}{\arabic{chapter}}
\renewcommand{\thesection}{\thechapter\mythickspace.\mythickspace\arabic{section}}
\renewcommand{\thesubsection}{\thesection\mythickspace.\mythickspace\arabic{subsection}}
\makeatother
\ChNameVar{\fontsize{20}{20}\usefont{OT1}{phv}{m}{n}\selectfont} % for fancy header
\ChNumVar{\fontsize{60}{90}\usefont{OT1}{ptm}{m}{n}\selectfont}
\ChTitleVar{\Large\bfseries\rm}
\ChRuleWidth{2.5pt}
\setlength{\marginparwidth}{32mm} % 32mm
\setlength{\marginparsep}{11mm} % 7mm
\setheadwidth[0pt]{textwithmarginpar}
\setfootwidth[0pt]{head}
\newlength\widestnum
\setlength\widestnum{36pt} %
\titleformat{\section}[frame] % line 1
{\bfseries\itshape\fontsize{13.6}{20}\selectfont}{}{-1pt} % line 2
{\makebox[\linewidth+2pt] % pushes fill and number to right line 3
{\colorbox{red!15} % line 4
{\parbox{\linewidth-8pt} % -ve shortens the fill line 5
{\parbox{\widestnum}{\hspace{7pt}\thesection} % line 6
\parbox{\dimexpr\linewidth-\widestnum\relax} % line 7
{\strut#1\strut}}}}} % line 8
\titleformat{\subsection}[frame] % line 1
{\bfseries\itshape\fontsize{12.6}{18}\selectfont}{}{-1pt} % line 2
{\makebox[\linewidth+2pt] % pushes fill and number to right line 3
{\colorbox{blue!15} % line 4
{\parbox{\linewidth-8pt} % -ve shortens the fill line 5
{\parbox{\widestnum}{\hspace{7pt}\thesubsection} % line 6
\parbox{\dimexpr\linewidth-\widestnum\relax} % line 7
{\strut#1\strut}}}}} % line 8
\titlespacing{\chapter}{0pt}{8pt}{6pt}[0pt] %
\titlespacing{\section}{0pt}{8pt}{6pt}[0pt]
\titlespacing{\subsection}{0pt}{8pt}{6pt}[0pt]
\begin{document}
\vspace{12pt}
\chapter{This is chapter ONE}
\section{The section frame and RED fill do not line up.}
\subsection{The subsection frame and BLUE fill do not line up.}
\end{document}
答案1
这太丑了，你应该用某种tikz方式来做这样的事情。如果你有兴趣使用tikz和，请告诉我titlesec。无论如何，这应该能给你一些想法。
除了使用frame选项titlesec，您还可以使用fcolorbox。这样不会换行，如果您需要换行，请使用\parbox内部的 。
\documentclass{article}
\usepackage{xcolor}
\usepackage[explicit]{titlesec}
\titleformat{\section}[block]%
{\bfseries\itshape\fontsize{13.6}{20}\selectfont}
{}
{1pt}%
{\fcolorbox{black}{red}{#1}} %
\titleformat{\subsection}[block]%
{\bfseries\itshape\fontsize{13.6}{20}\selectfont}
{}
{1pt}%
{\fcolorbox{black}{blue!40}{#1}} %
\titlespacing{\section}{0pt}{8pt}{6pt}[0pt]
\begin{document}
\section{The section frame and RED fill do not line up.}
Some text
\subsection{This is a sub section}
\end{document}
