我的中心標題未居中

Question

我的頁腳有以下程式碼：

\usepackage{fancyhdr}
\lhead{}
\rhead{}
\chead{My very important and long title that is not being centered as I would like to \newline Very Myself}
\cfoot{\thepage}
\setlength{\headheight}{14pt}

但它不居中：

我怎樣才能將它居中？我在用\documentclass[11pt,a4paper]{article}

Answer 1

使用\\與不使用\newline。該行為很容易重現：

\fbox{\parbox{5cm}{\centering A centered\\ text}}

\medskip

\fbox{\parbox{5cm}{\centering A centered\newline text}}

給出

這是適合您的程式碼

\documentclass{article}
\usepackage{geometry,fancyhdr}
\pagestyle{fancy}
\fancyhf{}% Clear header/footer
\chead{%
  My very important and long title that is not being centered as I would like to \\ Very Myself
}
\cfoot{\thepage}
\setlength{\headheight}{24pt}
\begin{document}

\section{A section}
\end{document}

該命令\\在上下文中改變其含義\centering，該命令在 中有效\chead，而在 中則\newline不然。

Answer 2

將標題設為 a 內tabular，因為換行（使用\newline）在標題框中無法如預期般運作：

\documentclass{article}
\usepackage{geometry,fancyhdr}
\pagestyle{fancy}
\fancyhf{}% Clear header/footer
\chead{\begin{tabular}{c}
  My very important and long title that is not being centered as I would like to \\ Very Myself
\end{tabular}}
\cfoot{\thepage}
\setlength{\headheight}{24pt}
\begin{document}
\section{A section}
\end{document}