表格的失控参数错误

Question

我正在使用 tabulary 并已像这样设置我的环境：

\usepackage{array,ltablex, makecell}%
\renewcommand\theadfont{\normalsize\bfseries}
\newenvironment{conditions}
 {\par\vspace{\abovedisplayskip}\noindent\begin{tabular}{>{$}l<{$} @{${}={}$} l}}
 {\end{tabular}\par\vspace{\belowdisplayskip}}%This is for descriptions of equations
\usepackage[]{multirow}
\usepackage[autostyle]{csquotes}% This is for quotes
\usepackage{tabulary}% This is for tables
\usepackage{ragged2e}
\usepackage{longtable,array}% This is formatting for long tables
\newcolumntype{L}[1]{>{\raggedright\arraybackslash}p{#1}}

然后，当我想制作一个带有换行文本的表格时，如从此示例中所示，我得到：

Runaway argument?
>{\raggedright \arraybackslash }p{L}\relax \NC@do D\NC@do d\NC@do V\@iwhilesw \
ETC.
Paragraph ended before \NC@find was complete.
<to be read again> 
                   \par 
l.96   \end{tabulary}

使用我从此链接获得的代码（获取换行文本）：

\begin{center}
  \begin{tabulary}{0.7\textwidth}{LCL}
    Short sentences      & \#  & Long sentences                                                 \\
    \hline
    This is short.       & 173 & This is much loooooooonger, because there are many more words.  \\
    This is not shorter. & 317 & This is still loooooooonger, because there are many more words. \\
  \end{tabulary}  
\end{center}

我的首要目标是制作一张如下所示的表格：

但现在看起来像：

https://cl.ly/1e2h2J3y3k2i

Answer 1

您定义L列类型来接受参数，即，

\newcolumntype{L}[1]{>{\raggedright\arraybackslash}p{#1}}

但你却把它当作不接受论点：

\begin{tabulary}{0.7\textwidth}{LCL}

出现失控参数错误是因为 LaTeX 正在查找 参数，但没有成功L。此外，L列类型已由环境定义tabulary。

我认为您应该 (a) 使用tabularx环境而不是tabulary环境，并且 (b) 从列类型的定义中删除该参数L。例如，

\documentclass{article}
\usepackage{tabularx}
\newcolumntype{L}{>{\raggedright\arraybackslash}X}
\begin{document}
\begin{center}
\begin{tabularx}{0.7\textwidth}{LcL}
    Short sentences      & \#  & Long sentences\\
    \hline
    This is short.       & 173 & This is much loooooooonger, because there are many more words.  \\
    This is not shorter. & 317 & This is still loooooooonger, because there are many more words. \\
\end{tabularx}
\end{center}
\end{document} 

---

附录：如果您的最终目的是使用longtable环境，那么您也不应该加载tabulary包。相反，我建议您按照以下示例代码进行操作。

\documentclass{article}
\usepackage{array,longtable}
\newcolumntype{L}[1]{>{\raggedright\arraybackslash}p{#1}}
\begin{document}
\begin{longtable}{L{0.25\textwidth}cL{0.25\textwidth}}
    Short sentences      & \#  & Long sentences\\
    \hline
    \endhead
    This is short.       & 173 & This is much loooooooonger, because there are many more words.  \\
    This is not shorter. & 317 & This is still loooooooonger, because there are many more words. \\
\end{longtable}
\end{document} 

Answer 2

\begin{document}
\begin{tabular}{|p{6cm}|p{6cm}|}\hline\hline
Features&Example\\\hline\hline
Here & There\\\hline
Today&Tomorrow\\\hline
Good & Bad \\\hline
\multicolumn{2}{|l|} {I need to add full two columns}\\\hline
\end{tabular}

我添加了一个表格示例来生成您需要的表格。