答案1
我从图像中获取的所有内容:居中的标题、左侧的章节号(如果有)、然后是标题和右侧的页码。
\documentclass{report}
\usepackage[indentunnumbered]{unnumberedtotoc}%https://en.wikibooks.org/wiki/LaTeX/Document_Structure#Section_numbering
\usepackage{etoolbox}
\tracingpatches
\makeatletter
\patchcmd{\@makechapterhead}{\raggedright}{\centering}{}{}
\patchcmd{\@makeschapterhead}{\raggedright}{\centering}{}{}
\makeatother
\begin{document}
\tableofcontents
\chapter{Wombat}
\addchap{Capybara}
\chapter{An insanely long chapter title that nobody will ever
read entirely Duck}
\end{document}