分割长列标题但中心列条目

Question

我有一张表格，其中一列标题很长，因此需要将其分成几行。当我尝试这样做时，列中的条目都很短（实际上它们都是单个字符），而且都是左对齐的。这看起来很奇怪。

\documentclass{amsart}
\usepackage{booktabs} 
\usepackage{tabularx}
\begin{document}
 \begin{table}[htbp]
    \centering  
    \caption{ } 
        \def\tabularxcolumn#1{m{#1}}
        \begin{tabularx}{0.5\textwidth}{cc p{0.23\linewidth}}
        \toprule
         {A} & {B}& {Blah blah longword shortword}\\
        Moon& Earth& 3 \\ 
        \bottomrule
    \end{tabularx}
\end{table}
\end{document} 

该代码给出以下结果：

如何才能使条目居中而不拉长列标题？

Answer 1

这里有三种不同的方法可以在较长的列标题内实现换行，同时保持列的内容水平居中：

\documentclass{amsart}
\usepackage{booktabs} 
\usepackage{tabularx}
\usepackage{makecell}
\renewcommand{\theadfont}{\normalsize}
\begin{document}

 \begin{table}[htbp]
    \centering  
    \caption{Regular tabular with makecell's thead command, manual linebreak} 
        \begin{tabular}{ccc}
        \toprule
         \thead{A} & \thead{B}&\thead {Blah blah longword\\ shortword}\\
        Moon& Earth& 3 \\ 
        \bottomrule
    \end{tabular}
\end{table}

 \begin{table}[htbp]
    \centering  
    \caption{Regular tabular and centered m type column, automatic line break} 
        \begin{tabular}{cc >{\centering\arraybackslash}m{0.23\linewidth}}
        \toprule
         {A} & {B}& {Blah blah longword shortword}\\
        Moon& Earth& 3 \\ 
        \bottomrule
    \end{tabular}
\end{table}

 \begin{table}[htbp]
    \centering  
    \caption{Tabularx and centered X type column, automatic line break} 
        \renewcommand{\tabularxcolumn}[1]{m{#1}}
        \begin{tabularx}{0.5\textwidth}{cc >{\centering\arraybackslash}X}
        \toprule
         {A} & {B}& {Blah blah longword shortword}\\
        Moon& Earth& 3 \\ 
        \bottomrule
    \end{tabularx}
\end{table}
\end{document} 

---

左对齐列标题：

\documentclass{amsart}
\usepackage{booktabs} 
\usepackage{tabularx}
\usepackage{makecell}
\renewcommand{\theadfont}{\normalsize}
\begin{document}

 \begin{table}[htbp]
    \centering  
    \caption{Regular tabular with makecell's thead command, manual linebreak} 
        \begin{tabular}{ccc}
        \toprule
         \thead{A} & \thead{B}&\thead[l]{Blah blah longword\\ shortword}\\
        Moon& Earth& 3 \\ 
        \bottomrule
    \end{tabular}
\end{table}

 \begin{table}[htbp]
    \centering  
    \caption{Regular tabular and centered m type column, automatic line break} 
        \begin{tabular}{ccc}
        \toprule
         {A} & {B}& \multicolumn{1}{>{\raggedright\arraybackslash}m{0.25\linewidth}}{Blah blah longword shortword}\\
        Moon& Earth& 3 \\ 
        \bottomrule
    \end{tabular}
\end{table}

\end{document}