`@{}` 不会删除表格边缘的空格吗？

Question

对于以下 MWE，

\documentclass[oneside,11pt,a4paper]{article}
\usepackage{booktabs}
\usepackage{tabularx}

\begin{document}
\newcolumntype{Y}{>{\centering\arraybackslash}X}
\begin{table}
    \begin{tabularx}{\textwidth}{@{}cYYY@{}}
        \toprule
        Present State & Input & Next State & Output\\
        \midrule
        00            &  00   &  0         &  0 \\ 
        00            &  00   &  0         &  0 \\ 
        \bottomrule
    \end{tabularx}
\end{table}
\end{document}

使用@{}似乎不会消除边缘处的空格，如图所示。我基本上希望第一行和最后一行相对于边缘的间距更加“对称”。这可能吗？

Answer 1

最后一列与前两列一样宽，“输出”位于该宽度的中央。实际上不右侧填充。

在这种情况下，您不想使用tabularx，而是tabular*

\documentclass[oneside,11pt,a4paper]{article}
\usepackage{booktabs}

\begin{document}

\begin{table}

\begin{tabular*}{\textwidth}{@{\extracolsep{\fill}}cccc@{}}
\toprule
Present State & Input & Next State & Output\\
\midrule
00            &  00   &  0         &  0 \\ 
00            &  00   &  0         &  0 \\ 
\bottomrule
\end{tabular*}

\caption{Some caption}

\end{table}

\end{document}

不过，除非表格的宽度几乎与文本宽度一样宽，否则我不会加宽表格：大片空白会使表格更难阅读。

Answer 2

\documentclass[oneside,11pt,a4paper]{article}
\usepackage{booktabs}
\usepackage{tabularx}

\begin{document}
%\newcolumntype{Y}{>{\centering\arraybackslash}X}
\begin{table}
    \begin{tabular}{@{}cccc@{}}
        \toprule
        Present State & Input & Next State & Output\\
        \midrule
        00            &  00   &  0         &  0 \\ 
        00            &  00   &  0         &  0 \\ 
        \bottomrule
    \end{tabular}
\end{table}
\end{document}

编辑

\documentclass[oneside,11pt,a4paper]{article}
\usepackage{booktabs}
\usepackage{tabularx}

\begin{document}
%\newcolumntype{Y}{>{\centering\arraybackslash}X}
\begin{table}
    \begin{tabular*}{\textwidth}{@{\extracolsep{\fill}} cccc}
        \toprule
        Present State & Input & Next State & Output\\
        \midrule
        00            &  00   &  0         &  0 \\ 
        00            &  00   &  0         &  0 \\ 
        \bottomrule
    \end{tabular*}
\end{table}
\end{document}