长表中的行颜色

Question

请问如何只为第一行和第二行之间的部分着色？

\documentclass[12pt,a4paper]{report}
\usepackage{multirow}
\usepackage{array}
\usepackage{longtable}
\usepackage{lscape}
\usepackage{color, colortbl}
\definecolor{Gray}{gray}{0.9}
\usepackage{pdflscape}
\begin{document}
\begin{landscape}
\begin{longtable}{ *{9}{r}| *{6}{r} }

\hline
    \rowcolor{Gray}
    &&&&&&&&&&&&&&\\[-7pt]
    \rowcolor{Gray}
\multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1}   & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1}& \multicolumn{1}{c|}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1}  \\
    \rowcolor{Gray}
\multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1}   & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1}& \multicolumn{1}{c|}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{1}  \\
    \rowcolor{Gray}  % <---------------- ??????????????????
    &&&&&&&&&&&&&&\\[-7pt]
\hline
     &&&&&&&&&&&&&&\\[-7pt]
    \endhead
1&1&1&1&1&1&1&1&1&1&1&1&1&1&1 \\
 \hline
\end{longtable}
\end{landscape}
\end{document}

Answer 1

代码中的问题在于使用 来&&&&&&&&&&&&&&\\[-7pt]增加文本和水平线之间的距离。删除所有颜色，颜色显示在两条水平线之间。为了增加行高，我添加了包cellspace。

\documentclass[12pt,a4paper]{report}

\usepackage{longtable}
\usepackage[table]{xcolor}
\definecolor{Gray}{gray}{0.9}
\usepackage{pdflscape}
\usepackage[column=0]{cellspace}
\setlength{\cellspacetoplimit}{4pt}
\setlength{\cellspacebottomlimit}{\cellspacetoplimit}

\begin{document}
\begin{landscape}

\begin{longtable}{ *{9}{0r}| *{6}{0r} }
\hline
    \rowcolor{Gray}
\multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1}   & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1}& \multicolumn{1}{0c|}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1}  \\
    \rowcolor{Gray}
\multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1}   & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1}& \multicolumn{1}{0c|}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1} & \multicolumn{1}{0c}{1}  \\

\hline
    \endhead
1&1&1&1&1&1&1&1&1&1&1&1&1&1&1 \\
 \hline
\end{longtable}
\end{landscape}
\end{document}

---

以下是使用longtblrfrom 的替代方法tabularray：

\documentclass{article}
\usepackage{xcolor}
\usepackage{tabularray}
\definecolor{Gray}{gray}{0.9}
\usepackage{pdflscape}

\begin{document}
\begin{landscape}
\begin{longtblr}[caption = {caption},label = {key}]
                {colspec = {*{9}{r}| *{6}{r}}, rowhead = 2, row{1,2}={c,Gray}}
\hline 
1&1&1&1&1&1&1&1&1&1&1&1&1&1&1  \\  
1&1&1&1&1&1&1&1&1&1&1&1&1&1&1  \\ \hline 
1&1&1&1&1&1&1&1&1&1&1&1&1&1&1  \\ \hline
\end{longtblr}
\end{landscape}
\end{document}