latex：如何在目录中将章节标题居中对齐？

Question

我正在尝试将目录中的章节标题居中对齐。我尝试在序言中使用 \centering，但没有成功：

\makeatletter
\let\stdl@chapter\l@chapter
\renewcommand*{\l@chapter}[2]{%
    \stdl@chapter{\centering\textcolor{blue}{#1}}{\centering{#2}}}

这是一个完整的例子：

\documentclass[11pt]{book}
\usepackage[svgnames]{xcolor}
\usepackage{tocloft}
\makeatletter
\let\stdl@chapter\l@chapter
\renewcommand*{\l@chapter}[2]{%
    \stdl@chapter{\centering{#1}}{\centering{#2}}}
\let\stdl@section\l@section
\renewcommand*{\l@section}[2]{%
  \stdl@section{{#1}}{{#2}}}
\let\stdl@subsection\l@subsection
\renewcommand*{\l@subsection}[2]{%
  \stdl@subsection{{#1}}{{#2}}}
\makeatother
\setcounter{tocdepth}{2}
\begin{document}
\tableofcontents
\chapter{Chapter one}
\section{Section One}
\subsection{Subsection One}
\subsection{Subsection Two}
\section{Section Two}
\subsection{Subsection One}
\subsection{Subsection Two}
\end{document}

Answer 1

如果您仍希望章节号左对齐并且仅标题居中，请更新\cftchapaftersnumb。

\documentclass[11pt]{book}
\usepackage[svgnames]{xcolor}
\usepackage{tocloft}
\renewcommand\cftchapaftersnumb{\hfill}
\setcounter{tocdepth}{2}
\begin{document}
\tableofcontents
\chapter{Chapter one}
\section{Section One}
\subsection{Subsection One}
\subsection{Subsection Two}
\section{Section Two}
\subsection{Subsection One}
\subsection{Subsection Two}
\end{document}

\l@chapter相反，正如 OP 尝试的那样，修改也会对章节编号产生影响：

\documentclass[11pt]{book}
\usepackage[svgnames]{xcolor}
\usepackage{tocloft}
%\renewcommand\cftchapaftersnumb{\hfill}
\makeatletter
\let\stdl@chapter\l@chapter
\renewcommand*{\l@chapter}[2]{\stdl@chapter{\hfill#1}{#2}}
\makeatother
\setcounter{tocdepth}{2}
\begin{document}
\tableofcontents
\chapter{Chapter one}
\section{Section One}
\subsection{Subsection One}
\subsection{Subsection Two}
\section{Section Two}
\subsection{Subsection One}
\subsection{Subsection Two}
\end{document}