如何为 X 类型的多列添加新列类型？

Question

我想创建一个新的列类型，用于多列内部。我尝试使用以下解决方案来实现一种新的列类型Tabularx 和多列。

我添加了这个 MWE 以便更好地理解

\documentclass{scrbook}
\usepackage{array}  
\usepackage{multirow}
\usepackage{tabularx}

\begin{document}
    %\newcolumntype{MultiX}[1]{>{\hsize=\dimexpr#1\hsize+((2*#1)-2)\tabcolsep+(#1+1-2)\arrayrulewidth\relax}X}
    %\newcolumntype{TwoX}{>{\hsize=\dimexpr2\hsize+2\tabcolsep+\arrayrulewidth\relax}X}
    \begin{table}
        \centering
        \caption{Example}
        \begin{tabularx}{\textwidth}{lXX}       
            Name & \multicolumn{2}{>{\hsize=\dimexpr2\hsize+2\tabcolsep+\arrayrulewidth\relax}X}{Test} \\
            Target & \multicolumn{2}{>{\hsize=\dimexpr2\hsize+2\tabcolsep+\arrayrulewidth\relax}X}{ I am a very interesting sentence, and I am long I am a very interesting sentence, and I am long } \\
            \multirow{3}{*}{ Essential Steps } & Step & System response \\
            & 1. I am a very interesting sentence & I am a very interesting sentence \\
            & 2. I am a very interesting sentence & I am a very interesting sentence \\
        \end{tabularx} 
    \end{table}
\end{document}

输出：

我想要多列的结果，但要使用新的列类型。我将在多个 tabularx 中使用此列类型。我尝试为n列创建一个动态列类型，但 2 列的列类型（正如我尝试过的列类型）TowX就足够了。

Answer 1

您无法通过以下方式定义多列规范，\newcolumntype但是您可以定义一个命令来执行此操作

\documentclass{scrbook}
\usepackage{array}  
\usepackage{multirow}
\usepackage{tabularx}

\begin{document}

\newcommand\zz[1]{\multicolumn{#1}{>{\hsize=%
\dimexpr\numexpr#1\relax\hsize+
\numexpr#1*2-2\relax\tabcolsep+
\numexpr#1-1\relax\arrayrulewidth
\relax}X}}
    \begin{table}
        \centering
        \caption{Example}
        \begin{tabularx}{\textwidth}{lXX}       
            Name & \zz{2}{Test} \\
            Target & \zz{2}{ I am a very interesting sentence, and I am long I am a very interesting sentence, and I am long } \\
            \multirow{3}{*}{ Essential Steps } & Step & System response \\
            & 1. I am a very interesting sentence & I am a very interesting sentence \\
            & 2. I am a very interesting sentence & I am a very interesting sentence \\
        \end{tabularx} 
    \end{table}
\end{document}

Answer 2

表格行之间可能有分页符：

\documentclass[captions=tableabove]{scrbook}
\usepackage{array}  
\usepackage{multirow}
\usepackage{xltabular}

\newcolumntype{Y}{>{\hsize=\dimexpr2\hsize+2\tabcolsep}X}

\begin{document}

\begin{xltabular}{\textwidth}{lXX | }       
\caption{Example}\\
Name & \multicolumn{2}{Y|}{Test} \\
Target & \multicolumn{2}{Y|}{ I am a very 
    interesting sentence, and I 
    am 
    long I am a 
    very 
    interesting sentence, and I am long } \\
\multirow{3}{*}{ Essential Steps } & Step & System response \\
        & 1. I am a very interesting sentence & I am a very interesting sentence \\
        & 2. I am a very interesting sentence & I am a very interesting sentence \\
\end{xltabular}
\end{document}