我对 Latex 还不太熟悉，想根据教授提供的模板制作报告。我想将章节标题和章节编号居中，并在其下方添加下划线。我尝试了很多方法，但只有章节标题居中，章节编号却居中。有人能帮我吗？
目前，我看到的章节名称如下：[1]：https://i.stack.imgur.com/VCsiO.png
我想要实现的目标：[2]：https://i.stack.imgur.com/8GrvS.png
我尝试过许多答案中提到的居中方法\chapter*{\centering Introduction}，但那只是将标题居中，Introduction而不是标题。有人能帮我把章节标题和编号居中，并在其下方添加下划线，这样看起来会更专业吗？
\documentclass[a4paper,12pt]{book}
\usepackage{fontspec}
\usepackage{microtype}
\usepackage{polyglossia}
\setdefaultlanguage{english}
\usepackage[english]{selnolig}
\usepackage{geometry}
\usepackage[usegeometry,
margin=20mm,
twoside=semi]
{typearea}
\usepackage{acronym}
\renewcommand*{\acsfont}[1]{{\rmfamily #1}}
\usepackage[export]{adjustbox}
\usepackage[font=small,labelfont=bf]{caption}
\usepackage{csquotes}
\usepackage{graphicx}
\usepackage{icomma}
\usepackage{ltablex}
\usepackage{newfile}
\usepackage{overpic}
\usepackage[hyphens]{url}
\usepackage{url}
\usepackage[
backend=biber,
style=ieee,
urldate=long,
dateabbrev=false
]{biblatex}
\addbibresource{literatur.bib}
\usepackage{float}
\makeatletter
\def\ScaleIfNeeded{
\ifdim\Gin@nat@width>\linewidth
\linewidth
\else
\Gin@nat@width
\fi
}
\makeatother
\setkeys{Gin}{width=\ScaleIfNeeded}
\parindent 2em
\parskip 0.5em
\pagestyle{headings}
\input{commons_en.tex}
\newoutputstream{xmpstream}
\openoutputfile{\jobname.xmpdata}{xmpstream}
\newcommand{\dummyspace}{ }
\addtostream{xmpstream}{\protect\Title{\dctitle}}
\addtostream{xmpstream}{\protect\Author{\dcauthorfirstname \dcauthorlastname}}
\addtostream{xmpstream}{\protect\Keywords{Compiler\protect\sep\dummyspace
Database\protect\sep\dummyspace
Index}}
\addtostream{xmpstream}{\protect\Publisher{My University}}
\closeoutputstream{xmpstream}
\usepackage{hyperref}
\usepackage[a-1b]{pdfx}
\hypersetup{unicode,
pdftitle={\dctitle},
pdfauthor={\dcauthorfirstname~\dcauthorlastname},
pdfsubject={\dcsubject},
hidelinks}
\pdfinfo{
/Title(\dctitle)
/Author(\dcauthorfirstname\ \dcauthorlastname)
/Subject(\dcsubject)
}
\usepackage{makeidx}
\makeindex
\setcounter{secnumdepth}{4}
\setcounter{tocdepth}{4}
\author{\dcauthorfirstname~\dcauthorlastname}
\title{\dctitle}
\date{\today}
\begin{document}
\frontmatter
\begin{titlepage}
\sffamily
\newgeometry{left=2cm,top=2cm,bottom=2cm,right=2cm}
\centering{
\begin{tabularx}{\linewidth}{lp{1.5em}|p{1.5em}X}
\includegraphics[width=0.33\textwidth,valign=c]{\tulogo}
& & &
{\huge\bfseries Department of Human Psychology}
\end{tabularx}
\vfill\vfill
{\Huge\bfseries \dctitle}
\vfill\vfill
{\huge \dcsubject\\[1ex]
for obtaining the academic degree}
\vfill
\LARGE B.\,Com.
\vfill
\dcauthortitle~\dcauthorfirstname~\dcauthorlastname\\[1ex]
Registration Number: \dcmatriculation
}
\vfill\vfill\vfill
\large
\begin{tabular}[t]{ll}
\textbf{Internal supervisor:} & ABCD\\
\textbf{External supervisor:} & WXYZ.
\end{tabular}
\end{titlepage}
\pagestyle{empty}
\ \\[90ex]
\null\vfill
{
\ \\
\textbf{\dcauthorlastname, \dcauthorfirstname}\\
\dctitle\\
\dcsubject, Department of Social Science\\
My University,~%
\ifcase\month%
\or January%
\or February%
\or March%
\or April%
\or May%
\or June%
\or July%
\or August%
\or September%
\or October%
\or November%
\or December%
\fi%
~\number\year
}
\par\vfill\null
%-----------------------------
% Acknowledgements
%-----------------------------
\section*{\centering Acknowledgements}
\input{tex/1.Acknowledgements.tex}
\vfill
\thispagestyle{empty}
%-----------------------------
% Abstract
%-----------------------------
\section*{\centering Abstract}
\input{tex/2.Abstract.tex}
\vfill
\thispagestyle{empty}
\section*{\centering About}
\input{tex/3.About}
\vfill
\clearpage{\pagestyle{empty}\cleardoublepage}
\pagestyle{headings}
%-----------------------------
% Lists
%-----------------------------
\tableofcontents \clearpage{\pagestyle{empty}\cleardoublepage}
\listoffigures \clearpage{\pagestyle{empty}\cleardoublepage}
\listoftables \clearpage{\pagestyle{empty}\cleardoublepage}
%\lstlistoflistings
\input{tex/acronyms_en.tex} \clearpage{\pagestyle{empty}\cleardoublepage}
\mainmatter
\acresetall
%---------------------------------------------------------------------------------------------------
\chapter{\centering Introduction}
\input{tex/4.Introduction.tex}
\chapter{Conclusion}
\input{tex/10.Conclusion.tex}
\chapter{Future Scope}
\input{tex/11.FutureScope.tex}
\begin{appendix}
\chapter{Appendix}
\label{chap:Appendix}
\input{tex/appendix0_en.tex}
\end{appendix}
\backmatter
\printindex
\addcontentsline{toc}{chapter}{Bibliography}
\printbibliography
\clearpage
\thispagestyle{empty}
\addcontentsline{toc}{chapter}{Statement of Authorship}
\newgeometry{left=2cm,right=3.5cm,top=2cm,bottom=2cm}
\newlength\us
\settowidth{\us}{-\dcauthorfirstname~\dcauthorlastname-}
\begin{overpic}[width=\linewidth]{pics/selbstaendigkeitserklaerung}
\put (6.5,81.71) {\small\sffamily \dcauthorlastname}
\put (6.5,78.15) {\small\sffamily \dcauthorfirstname}
\put (6.5,74.60) {\small\sffamily \dcauthorbirthdate}
\put (6.5,71.05) {\small\sffamily \dcmatriculation}
\put (5,32.69) {\small\sffamily \today}
\put (45.8,57.46){\small\sffamily \dcsubject}
\put (38,32.6) {\rule[-0.1ex]{\us}{0.5pt}}
\end{overpic}
\restoregeometry
\end{document}
答案1
只需使用titlesec。将以下几行添加到你的序言中：
\usepackage{titlesec}
\titleformat{\chapter}[display]{\bfseries\filcenter}{\huge\chaptername~\thechapter}{3.8ex}{\Huge}[\vskip 1ex{\titlerule[1pt]}]
