我正在ltablex與\multicolumns 一起使用。我的問題是，我必須在單一項目中引入大量文本\multicolumn，然後當它自動將表格分成兩個不同的頁面時，它會在第一頁的末尾保留大量空白。我想找到一條線索，用於\multicolumn在達到底部邊距時自動破壞項目，而不是逐行破壞。這是一個例子：
\begin{tabularx}{\linewidth}{| l | X | X | X | X | X | X | X |}
blabla & more blabla & \multicolumn{3}{c|}{merging cells} & \multicolumn{3}{c|}{more merging} \\
\multicolumn{8}{|p{\textwidth-2\tabcolsep-2\fboxrule}|}{a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, } \\
\hline
\multicolumn{8}{|p{\textwidth-2\tabcolsep-2\fboxrule}|}{a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, } \\
\hline
\multicolumn{8}{|p{\textwidth-2\tabcolsep-2\fboxrule}|}{a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, } \\
\hline
\multicolumn{8}{|p{\textwidth-2\tabcolsep-2\fboxrule}|}{a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, } \\
\hline
...
\multicolumn{8}{|p{\textwidth-2\tabcolsep-2\fboxrule}|}{a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, a very long text, } \\
\hline
\end{tabularx}
答案1
根本不需要有一個longtable/ltablexhere（也不需要使用tabularx X列。）如果您使用tabularxtex，則需要花費大量精力重新設定表格並確定最佳列寬，但您事先知道跨單元格已滿寬度和單一單元格是該寬度的八分之一（或至少是線寬的七分之一減去第一列中的最大條目）。所以你可以告訴 TeX 並省去解決這個問題的麻煩。固定單元格寬度後，它們不再需要位於同一個表中，因為它們無論如何都會對齊，因此您可以用普通文字替換跨越條目。如果你確實需要垂直規則，你可以使用mdframed一個易碎的框架。
筆記
\textwidth-2\tabcolsep-2\fboxrule
不是正確的計算，因為規則寬度不是\arrayrulewidth（\fboxrule當然它們可能有相同的值）。
所以像這樣：
\documentclass{article}
\addtolength\textheight{-30\baselineskip}
\addtolength\paperheight{-30\baselineskip}
\pdfpageheight\paperheight
\newenvironment{trow}
{\par
\begin{tabular}{|*8{p{\dimexpr(((\textwidth-\arrayrulewidth)/8)-2\tabcolsep-\arrayrulewidth)\relax}|}}
\hline}
{\\\hline\end{tabular}%
\par}
\begin{document}
\setlength\parindent{0pt}
\def\x{a very long text, a very long text, a very long text, a very long
text, a very long text, a very long text, a very long text, a very
long text, a very long text, a very long text, a very long text, a
very long text, a very long text, a very long text, a very long text,
a very long text, a very long text, a very long text, a very long
text, a very long text, a very long text, }
\x
\begin{trow}
red&yellow&blue&green&red&yellow&blue&green
\end{trow}
\begin{trow}
1&2&3&4&5&6&7&8
\end{trow}
\x
\begin{trow}
red&yellow&blue&green&red&yellow&blue&green
\end{trow}
\begin{trow}
1&2&3&4&5&6&7&8
\end{trow}
\x
\begin{trow}
red&yellow&blue&green&red&yellow&blue&green
\end{trow}
\begin{trow}
1&2&3&4&5&6&7&8
\end{trow}
\end{document}