为什么表格中的一个单元格有不同的高度？

Question

我正在尝试制作一个表格，使其所有单元格的高度和宽度相等。我尝试了以下代码：

\documentclass[conference]{IEEEtran}
\setlength{\extrarowheight}{1pt}
\begin{table}
\centering
\caption{My caption}
\label{my-label}
\begin{tabular}{|*{12}{p{1.0cm}|}}
\hline
labels     & airplane & automobile & bird & cat & deer & dog & frog & horse & ship & truck & accuracy \\ \hline
airplane   & 915      & 4          & 17   & 19  & 3    & 1   & 0    & 2     & 27   & 12    & 91.50\%  \\ \hline
automobile & 8        & 934        & 3    & 4   & 0    & 0   & 3    & 0     & 10   & 38    & 93.40\%  \\ \hline
bird       & 60       & 1          & 813  & 37  & 19   & 23  & 30   & 10    & 7    & 0     & 81.30\%  \\ \hline
cat        & 18       & 1          & 34   & 746 & 25   & 113 & 37   & 18    & 8    & 0     & 74.60\%  \\ \hline
deer       & 24       & 1          & 38   & 33  & 809  & 19  & 44   & 29    & 2    & 1     & 80.90\%  \\ \hline
dog        & 4        & 0          & 37   & 106 & 23   & 792 & 9    & 26    & 2    & 1     & 79.20\%  \\ \hline
frog       & 2        & 5          & 19   & 35  & 1    & 20  & 912  & 2     & 3    & 1     & 91.20\%  \\ \hline
horse      & 14       & 0          & 26   & 20  & 18   & 28  & 4    & 886   & 3    & 1     & 88.60\%  \\ \hline
ship       & 35       & 10         & 3    & 2   & 0    & 2   & 1    & 0     & 936  & 11    & 93.60\%  \\ \hline
truck      & 23       & 37         & 4    & 10  & 1    & 2   & 2    & 0     & 15   & 906   & 90.60\%  \\ \hline
\end{tabular}
\end{table}

并得到如下输出：

我不明白为什么第三排即汽车排的高度不同。这是为什么？

Answer 1

我提出了两种解决方案，即和tabularx，用于列中的不同对齐方式：siunitxeqparbox

\documentclass[conference]{IEEEtran}
\usepackage{showframe, eqparbox, siunitx} \usepackage{tabularx}
\setlength{\extrarowheight}{2pt}
\newlength{\colwd}
\newcommand\colhead[1]{\eqmakebox[head]{#1}}


\begin{document}

\begin{table*}
  \centering
  \setlength\tabcolsep{3.5pt}
  \caption{My caption}
  \label{my-label}
  \begin{tabularx}{\linewidth}{|*{12}{ >{\centering\arraybackslash}X|}}%{|*{12}{p{1.1cm}|}}%
    \hline
    labels & airplane & automobile & bird & cat & deer & dog & frog & horse & ship & truck & accuracy \\ \hline
    airplane & 915 & 4 & 17 & 19 & 3 & 1 & 0 & 2 & 27 & 12 & 91.50\,\% \\ \hline
    automobile & 8 & 934 & 3 & 4 & 0 & 0 & 3 & 0 & 10 & 38 & 93.40\,\% \\ \hline
    bird & 60 & 1 & 813 & 37 & 19 & 23 & 30 & 10 & 7 & 0 & 81.30\,\% \\ \hline
    cat & 18 & 1 & 34 & 746 & 25 & 113 & 37 & 18 & 8 & 0 & 74.60\,\% \\ \hline
    deer & 24 & 1 & 38 & 33 & 809 & 19 & 44 & 29 & 2 & 1 & 80.90\,\% \\ \hline
    dog & 4 & 0 & 37 & 106 & 23 & 792 & 9 & 26 & 2 & 1 & 79.20\,\% \\ \hline
    frog & 2 & 5 & 19 & 35 & 1 & 20 & 912 & 2 & 3 & 1 & 91.20\,\% \\ \hline
    horse & 14 & 0 & 26 & 20 & 18 & 28 & 4 & 886 & 3 & 1 & 88.60\,\% \\ \hline
    ship & 35 & 10 & 3 & 2 & 0 & 2 & 1 & 0 & 936 & 11 & 93.60\,\% \\ \hline
    truck & 23 & 37 & 4 & 10 & 1 & 2 & 2 & 0 & 15 & 906 & 90.60\,\% \\ \hline
  \end{tabularx}
\end{table*}
%
\begin{table*}
  \centering
  \setlength\tabcolsep{3.5pt}
  \sisetup{table-format=3.0, table-number-alignment=center}
  \caption{My caption}
  \label{thy-label}
  \begin{tabularx}{\linewidth}{|l|*{10}{S[]|}S[table-format =2.2,table-space-text-post = \,\%]}%{|*{12}{p{1.1cm}|}}%
    \hline
    \eqmakebox[head][l]{labels} & \colhead{airplane} & \colhead{automobile} & \colhead{bird} & \colhead{cat} & \colhead{deer} & \colhead{dog} & \colhead{frog} & \colhead{horse} & \colhead{ship} & \colhead{truck} & \colhead{accuracy} \\ \hline
    airplane & 915 & 4 & 17 & 19 & 3 & 1 & 0 & 2 & 27 & 12 & 91.50\,\% \\ \hline
    automobile & 8 & 934 & 3 & 4 & 0 & 0 & 3 & 0 & 10 & 38 & 93.40\,\% \\ \hline
    bird & 60 & 1 & 813 & 37 & 19 & 23 & 30 & 10 & 7 & 0 & 81.30\,\% \\ \hline
    cat & 18 & 1 & 34 & 746 & 25 & 113 & 37 & 18 & 8 & 0 & 74.60\,\% \\ \hline
    deer & 24 & 1 & 38 & 33 & 809 & 19 & 44 & 29 & 2 & 1 & 80.90\,\% \\ \hline
    dog & 4 & 0 & 37 & 106 & 23 & 792 & 9 & 26 & 2 & 1 & 79.20\,\% \\ \hline
    frog & 2 & 5 & 19 & 35 & 1 & 20 & 912 & 2 & 3 & 1 & 91.20\,\% \\ \hline
    horse & 14 & 0 & 26 & 20 & 18 & 28 & 4 & 886 & 3 & 1 & 88.60\,\% \\ \hline
    ship & 35 & 10 & 3 & 2 & 0 & 2 & 1 & 0 & 936 & 11 & 93.60\,\% \\ \hline
    truck & 23 & 37 & 4 & 10 & 1 & 2 & 2 & 0 & 15 & 906 & 90.60\,\% \\ \hline
  \end{tabularx}
\end{table*}

\end{document}