主要是在表格环境中插入这两句
\begingroup
\setlength{\tabcolsep}{10pt} % Default value: 6pt
\renewcommand{\arraystretch}{1.5} % Default value: 1
一个是调整列距离，一个是调整行距离
然后表格前后的对比为
以下为源码
%\title{LaTeX Table spacing example}
% Example by John Hammersley
\documentclass{article}
\usepackage[usenames,dvipsnames]{xcolor}
\begin{document}
\section*{Table with default spacings}
% A table with the default row and column spacings
\begin{tabular}{ c c c }
First Row & -6 & -5 \\
Second Row & 4 & 10\\
Third Row & 20 & 30\\
Fourth Row & 100 & -30\\
\end{tabular}
\section*{Table with adjusted spacings}
% A table with adjusted row and column spacings
% \setlength sets the horizontal (column) spacing
% \arraystretch sets the vertical (row) spacing
\begingroup
\setlength{\tabcolsep}{10pt} % Default value: 6pt
\renewcommand{\arraystretch}{1.5} % Default value: 1
\begin{tabular}{ c c c }
First Row & -6 & -5 \\
Second Row & 4 & 10\\
Third Row & 20 & 30\\
Fourth Row & 100 & -30\\
\end{tabular}
\endgroup
% The \begingroup ... \endgroup pair ensures the separation
% parameters only affect this particular table, and not any
% sebsequent ones in the document.
\end{document}
参考链接https://www.overleaf.com/project/5c349976c042023b1bd97751