对同一张表（或图表）采用不同的标题格式

Question

我创建了下表。标题基本上包括标签、标题（位于\caption{}）和我描述表格的标题（位于\caption*{}）。格式与《金融杂志》中使用的格式类似。

问题是，如果标题较长，如下图所示，表格和标题就不再居中。

为了创建上述表格，我使用了以下代码。使用 caption 包。

\documentclass[11pt, a4paper]{article}
\usepackage{caption}
\usepackage{tabularx}
\captionsetup[table]{labelsep = newline, labelfont = bf}

\begin{document}

\begin{table}[!htbp] \centering 
  \caption{\bf \Large This is the main title.}
  \caption*{This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table.} 
  \label{table:rnmSummary} 
\begin{center}
  \begin{tabular}{ l | c || r }
    \hline
    1 & 2 & 3 \\ \hline
    4 & 5 & 6 \\ \hline
    7 & 8 & 9 \\
    \hline
  \end{tabular}
\end{center}
\end{table}

\end{document}

Answer 1

你可以使用

\captionsetup{justification=centering,singlelinecheck=off}

在组内（以保持局部效果）。完整的示例：

\documentclass[11pt, a4paper]{article}
\usepackage{caption}
\usepackage{tabularx}
\captionsetup[table]{labelsep = newline, labelfont = bf}

\begin{document}

\begin{table}[!htbp] \centering
  {\captionsetup{justification=centering,singlelinecheck=off} 
  \caption{\bfseries\Large This is the main title and some more words so it spans more than one line.}}
  \caption*{This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table. This is a second caption describing the table.} 
  \label{table:rnmSummary} 
\begin{center}
  \begin{tabular}{ l | c || r }
    \hline
    1 & 2 & 3 \\ \hline
    4 & 5 & 6 \\ \hline
    7 & 8 & 9 \\
    \hline
  \end{tabular}
\end{center}
\end{table}

\end{document}

结果：

当然，如果要多次使用，请定义一个命令来简化代码。在序言中：

\newcommand\MyCaption[2][]{%
\begingroup
\captionsetup{justification=centering,singlelinecheck=off,font=bf,textfont=Large} 
  \caption[#1]{This is the main title and some more words so it spans more than one line.}
\endgroup%
}

然后，在你的文档中，

  \MyCaption{This is the main title and some more words so it spans more than one line.}