使用表格将表格内容居中对齐

Question

我希望将第二列和第三列的长度相等并置于中心。

\documentclass{article}
\usepackage{booktabs}

\begin{document}

\begin{table}[!ht]
    %\begin{tabularx}{\textwidth}{@{}Y*{3}{W}@{}}
\centering
 \begin{tabular}{ccc}
    \toprule
    & \multicolumn{2}{c}{\textbf{Testing Testing Testin}} \\
    & \multicolumn{2}{c}{\textbf{Making into Secondline (\%)}} \\
     \cmidrule{2-3}
    & \small {\textbf{AA}}
     & \small {\textbf{BB}} \\
     \midrule
    Test 1 & 33 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
        \bottomrule
    \end{tabular}

\end{table}

\end{document}

结果：

我希望将第二列和第三列的长度相等并置于中心。

我曾尝试过：

 \begin{tabular}{ccc}

Answer 1

这是借助parbox

\documentclass{article}
\usepackage{booktabs}

\begin{document}

\begin{table}[!ht]
    %\begin{tabularx}{\textwidth}{@{}Y*{3}{W}@{}}
\centering
 \begin{tabular}{ccc}
    \toprule
    & \multicolumn{2}{c}{\textbf{Testing Testing Testin}} \\
    & \multicolumn{2}{c}{\textbf{Making into Secondline (\%)}} \\
     \cmidrule{2-3}
    &  {\parbox{3cm}{\small\hfil\textbf{AA}\hfill}}
     & {\parbox{3cm}{\small\hfil\textbf{BB}\hfill}} \\
     \midrule
    Test 1 & 33 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
        \bottomrule
    \end{tabular}

\end{table}

\end{document}

Answer 2

这是一个可能的解决方案，基于siunitx来获得良好的数字对齐（居中右对齐）。S列中的非数字必须用一对括号括起来并自动居中。此外，可以选择 S 列的宽度。此解决方案还依赖于，它允许在标准单元格中换行，以及和命令makecell的参数的通用格式。\makecell\thead

\documentclass{article}
\usepackage{array}
\usepackage{booktabs, makecell}
\renewcommand{\theadfont}{\small\bfseries}
\usepackage{siunitx}

\begin{document}

\begin{table}[!ht]
\centering
\sisetup{table-format=3.0, table-number-alignment=center, table-column-width=1.5cm}
 \begin{tabular}{cSS}
    \toprule
    & \multicolumn{2}{c}{\small\bfseries Testing Testing Testin} \\
    & \multicolumn{2}{c}{\thead{\makebox[0pt]{Making into Secondline}\\ (\%)}} \\
     \cmidrule{2-3}
    &{\small \textbf{AA}}
     & {\small\textbf{BB}} \\
     \midrule
    Test 1 & 33 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
    Test 2 & 57 & 73 \\
        \bottomrule
    \end{tabular}
\end{table}

\end{document} 

Answer 3

这样会使列呈“Z”形，居中对齐最长标题行的一半宽度。您只需告诉 LateX 该标题行的宽度是多少，在每个表格之前，宽度为\settowidth：

\documentclass{article}
\usepackage{booktabs,array}
\newlength{\xxx} % suggestion:  change "xxx" for something meaningful 
\newcolumntype{Z}{>{\hfil}p{.5\xxx}}
\begin{document}

\settowidth{\xxx}{\textbf{Making into Secondline (\%)}}

\begin{tabular}{cZZ} \toprule
& \multicolumn{2}{c}{\textbf{Testing Testing Testin}} \\
& \multicolumn{2}{c}{\textbf{Making into Secondline (\%)}} \\\cmidrule{2-3}
& \small {\textbf{AA}}  & \small {\textbf{BB}} \\\midrule
Test 1 & 33 & 73 \\
Test 2 & 57 & 73 \\
Test 2 & 57 & 73 \\
Test 2 & 57 & 73 \\
Test 2 & 57 & 73 \\
Test 2 & 57 & 73 \\
Test 2 & 57 & 73 \\\bottomrule
\end{tabular}

\end{document}