根据首行设置列宽并换行

Question

我有以下代码：

\documentclass[12pt]{article}
\begin{document}

\begin{tabular}{|l|}
\hline
the title \\
\hline
very very very very long \\
\hline
\end{tabular}

\end{document}

代码绘制的表格如下（请忽略字体和背景颜色）：

我想根据第一行的宽度换行第二行文本（这样“非常非常非常非常长”的文本就会显示在几行中）。有人知道怎么做吗？

Answer 1

像这样？

\documentclass[12pt]{article}
\newlength{\mylen}
\settowidth{\mylen}{the title}
\begin{document}

\begin{tabular}{|l|}
\hline
the title \\
\hline
\multicolumn{1}{|p{\mylen}|}{very very very very long} \\
\hline
\end{tabular}

\end{document}

如果您不想要那些未满的盒子，请加载array包并使用>{\raggedright\arraybackslash}p{\mylen}：

\documentclass[12pt]{article}
\usepackage{array}
\newlength{\mylen}
\settowidth{\mylen}{the title}
\begin{document}

\begin{tabular}{|l|}
\hline
the title \\
\hline
\multicolumn{1}{|>{\raggedright\arraybackslash}p{\mylen}|}{very very very very long} \\
\hline
\end{tabular}

\end{document}

Answer 2

长列情况的另一种尝试。需要使用widthof{<content>}from包。calc

代码

\documentclass[border=20pt]{standalone}
\usepackage{array,calc}

\begin{document}
\noindent
\begin{tabular}{|p{\widthof{the title}}|} \hline
the title \\ \hline
very very very very long  \\ \hline
very very very very very very long  \\ \hline
\end{tabular}

\end{document}