如何调整小页面中表格及其标题的垂直/水平对齐方式？

Question

我希望标题的宽度与表格的宽度相同，并适当环绕。所以我创建了一个新命令来实现这一点。MWE 如下。问题是，虽然表格和标题在右侧齐平（这是我想要的），但标题在左侧略微突出于表格（这不是我想要的）。我怎样才能让表格和标题在左右两侧齐平？谢谢，Roger

\documentclass{article}
%
\newcommand{\tab}[4]{
\setbox0=\hbox{#1}
\begin{table}[htbp]
\begin{center}
\begin{minipage}{\the\wd0}
\caption[#2]{#3\label{#4}}
\box0
\end{minipage}
\end{center}
\end{table}}
%
\begin{document}
%
\tableofcontents
\listoftables
%
\tab{
\begin{tabular}{|c|c|c|}
  \hline
  one & two & three\\
  four & five & six\\
  seven & eight & nine\\
  \hline
\end{tabular}}
{Small Table in Minipage}
{A small table in a minipage with a caption that wraps
but is slightly to the left of the table in vertical
alignment.}
{tab:inminipage}
%
\end{document}

Answer 1

您的代码在错误的位置引入了一个空格，就在表格之前。因此，打印出来时，您的表格会向右缩进一个空格的宽度：

\tab{

应该

\tab{%  %% <- remove the space produces by the linebreak

这是您的 MWE：

\documentclass{article}
%
\newcommand{\tab}[4]{
\setbox0=\hbox{#1}
\begin{table}[htbp]
\begin{center}
\begin{minipage}{\the\wd0}
\caption[#2]{#3\label{#4}}
\box0
\end{minipage}
\end{center}
\end{table}}
%
\begin{document}
%
\tableofcontents
\listoftables
%
\tab{%                   %%% <- this % makes the difference
\begin{tabular}{|c|c|c|}
  \hline
  one & two & three\\
  four & five & six\\
  seven & eight & nine\\
  \hline
\end{tabular}}
{Small Table in Minipage}
{A small table in a minipage with a caption that wraps
but is slightly to the left of the table in vertical
alignment.}
{tab:inminipage}
%
\end{document}

Answer 2

虽然这不能直接回答您的问题，但我建议threeparttable使用已经提供此功能的软件包：

\documentclass{article}
\usepackage{threeparttable}

\begin{document}
\begin{table}
\centering
\begin{threeparttable}
\caption{A quite long caption.}
\begin{tabular}{|c|c|c|}
  \hline
  one & two & three\\
  four & five & six\\
  seven & eight & nine\\
  \hline
\end{tabular}
\end{threeparttable}
\end{table}
\end{document}