我有一张长表，大约有 50 行，有两列。由于它很窄，我想将其分成两列（每列包含表格的两列），两列之间留有空格，如图所示（线条代表表格中的内容）。
一种方法是制作一个有 5 列的表格，然后手动将数据输入到我想要的位置，中间一列留空，以在两部分之间留出空间。但是，我想知道是否有办法自动完成此操作，这样如果我添加任何数据，它就会自动放置在应有的位置。我还希望能够添加\toprule，\midrule并\bottomrule在两列之间留出一个空格。
如果有任何区别，我希望它出现在包含不应出现在列中的文本的页面上。
下面是包含我所描述的方法和常规表的示例代码：
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{longtable}
\usepackage{booktabs}
\usepackage{multicol}
\begin{document}
\begin{center}
\begin{longtable}{ l l p{1cm} l l }
\caption{Caption.}\\
\toprule
Column 1 & Column 2 & & Column 1 & Column 2 \\
\midrule
\endfirsthead
\midrule
Column 1 & Column 2 & & Column 1 & Column 2 \\
\midrule
\endhead
% \bottomrule
% \endfoot
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
data1 & data2 & & data1 & data2\\
\bottomrule
\end{longtable}
\end{center}
\begin{center}
\begin{longtable}{ l l }
\caption{Caption.}\\
\toprule
Column 1 & Column 2 \\
\midrule
\endfirsthead
\midrule
Column 1 & Column 2 \\
\midrule
\endhead
% \bottomrule
% \endfoot
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
\bottomrule
\end{longtable}
\end{center}
\end{document}
答案1
您可以使用 LaTeX3 编程层将单元格分成两列：
第二个答案
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{caption,float}
\usepackage{tabularray}
\NewTableCommand{\toprule}{\cline[0.08em]{1-2}\cline[0.08em]{4-5}}
\NewTableCommand{\bottomrule}{\cline[0.08em]{1-2}\cline[0.08em]{4-5}}
\NewTableCommand{\midrule}{\cline[0.05em]{1-2}\cline[0.05em]{4-5}}
\ExplSyntaxOn
\NewDocumentEnvironment{mytabular}{+b}
{
\seq_set_split:Nnn \l_tmpa_seq { \\ } {#1}
\int_set:Nn \l_tmpa_int { \int_div_round:nn { \seq_count:N \l_tmpa_seq - 1 } {2} }
\tl_set:Nn \l_tmpa_tl
{
\toprule
Column 1 & Column 2 & & Column 1 & Column 2 \\
\midrule
}
\int_step_inline:nn { \l_tmpa_int }
{
\tl_put_right:Nx \l_tmpa_tl
{
\seq_item:Nn \l_tmpa_seq {##1} \exp_not:n{ & & }
\seq_item:Nn \l_tmpa_seq {##1 + \l_tmpa_int } \exp_not:n{ \\ }
}
}
\tl_put_right:Nn \l_tmpa_tl
{
\bottomrule
}
\begin{tblr}[expand=\l_tmpa_tl]{l l p{1cm} l l}
\l_tmpa_tl
\end{tblr}
} { }
\ExplSyntaxOff
\begin{document}
Text Text Text Text Text Text Text Text Text Text
Text Text Text Text Text Text Text Text Text Text
\begin{table}[H]
\centering
\caption{Table Caption}
\begin{mytabular}
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
\end{mytabular}
\end{table}
Text Text Text Text Text Text Text Text Text Text
Text Text Text Text Text Text Text Text Text Text
\end{document}
第一个答案
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{booktabs}
\usepackage{caption,float}
\ExplSyntaxOn
\NewDocumentEnvironment{mytabular}{+b}
{
\seq_set_split:Nnn \l_tmpa_seq { \\ } {#1}
\int_set:Nn \l_tmpa_int { \int_div_round:nn { \seq_count:N \l_tmpa_seq - 1 } {2} }
\begin{tabular}{l l p{1cm} l l}
\toprule
Column 1 & Column 2 & & Column 1 & Column 2 \\
\midrule
\int_step_inline:nn { \l_tmpa_int }
{
\seq_item:Nn \l_tmpa_seq {##1} & & \seq_item:Nn \l_tmpa_seq {##1 + \l_tmpa_int }
\int_compare:nNnTF {##1} = {\l_tmpa_int} { \\ \bottomrule } { \\ }
}
\end{tabular}
} { }
\ExplSyntaxOff
\begin{document}
Text Text Text Text Text Text Text Text Text Text
Text Text Text Text Text Text Text Text Text Text
\begin{table}[H]
\centering
\caption{Table Caption}
\begin{mytabular}
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
data1 & data2 \\
\end{mytabular}
\end{table}
Text Text Text Text Text Text Text Text Text Text
Text Text Text Text Text Text Text Text Text Text
\end{document}
