如何绘制从第 i 列开始到第 j 列结束的水平规则/线条（使用 \longtable、\multirow 和 \rownum 时）？

Question

梅威瑟：

我尝试添加多次\cline，但没有成功...！

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{multirow, makecell, booktabs, tabularx, longtable}
\usepackage[dvipsnames,table]{xcolor}
\definecolor{light-gray}{HTML}{FFFFFF}
\definecolor{light-blue}{HTML}{EBF5FB}

\title{}
\author{}

\begin{document}
\maketitle


\rowcolors{1}{light-gray}{light-blue}
\begin{longtable}
{m{1.2cm} m{0.5cm} m{1cm} m{1.5cm} m{1.5cm} m{1.5cm} m{1.5cm}}

\hline
\rowcolor{white}
& $Day$
& $Month$
& $Hours$
& $Feature 1$ 
& $Feature 2$
& $Feature 3$\\
\hline
%-------------------------------------------------
Friday
& $5$
& June
& 
& $A_1$
& $A_2$
& $A_3$
\\
\hline
%-------------------------------------------------
\global\rownum=2\relax
& 
& 
& $14 - 21$
& $B_1$
&
& $B_3$
\\
\multirow{-2}{*}[0em]{Saturday} 
& \multirow{-2}{*}[0em]{$6$} 
& \multirow{-2}{*}[0em]{June}
&
& $C_1$
& $C_2$
& $C_3$
\\
\hline
% -------------------------------------------------
\global\rownum=1\relax
& 
& 
& $08 - 10$
& $D_1$
& $D_2$
& $D_3$
\\
\global\rownum=1\relax
& 
&
& $10 - 17$
& $E_1$
&
& $E_3$
\\
\multirow{-3}{*}[0em]{Sunday}
& \multirow{-3}{*}[0em]{$7$}
& \multirow{-3}{*}[0em]{June}
& 
& $F_1$
& $F_2$
& $F_3$
\\
\hline
% -------------------------------------------------
\hiderowcolors
\\
\caption{This is a caption.}
\end{longtable}

\end{document}

此代码生成的内容：

我的期望输出：

Answer 1

我建议使用tabularray：

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[dvipsnames,table]{xcolor}
\definecolor{light-gray}{HTML}{FFFFFF}
\definecolor{light-blue}{HTML}{EBF5FB}
\usepackage{tabularray}

\title{}
\author{}

\begin{document}
    \maketitle
    
    \begin{longtblr}[
        caption = {This is a caption.},
        ]{
            colspec={m{1.2cm} m{0.5cm} m{1cm} m{1.5cm} m{1.5cm} m{1.5cm} m{1.5cm}},
            row{1}={font=\itshape},
            cell{2-Z}{5-Z}={mode=math},
            row{2,5-7}={bg=light-blue},
            row{3-4}={bg=light-gray},
            hlines
        }
        & Day
        & Month
        & Hours
        & Feature 1 
        & Feature 2
        & Feature 3\\
        %-------------------------------------------------
        Friday
        & 5 
        & June
        & 
        & A_1
        & A_2
        & A_3
        \\
        %-------------------------------------------------
        \SetCell[r=2]{l} Saturday 
        & \SetCell[r=2]{l} 6 
        & \SetCell[r=2]{l} June
        & 14 -- 21
        & B_1
        &
        & B_3
        \\
        &  
        & 
        &
        & C_1
        & C_2
        & C_3
        \\
        % -------------------------------------------------
        \SetCell[r=3]{l} Sunday
        & \SetCell[r=3]{l} 7
        & \SetCell[r=3]{l} June
        & 08 -- 10
        & D_1
        & D_2
        & D_3
        \\
        & 
        &
        & 10 -- 17
        & E_1
        &
        & E_3
        \\
        & 
        & 
        & 
        & F_1
        & F_2
        & F_3
        \\
        % -------------------------------------------------
    \end{longtblr}
    
\end{document}

如果您使用数学模式仅有下标，但您的单元格实际上只有文本：

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[dvipsnames,table]{xcolor}
\definecolor{light-gray}{HTML}{FFFFFF}
\definecolor{light-blue}{HTML}{EBF5FB}
\usepackage{tabularray}

\title{}
\author{}

\begin{document}
    \maketitle
    
    \begin{longtblr}[
        caption = {This is a caption.},
        ]{
            colspec={m{1.2cm} m{0.5cm} m{1cm} m{1.5cm} m{1.5cm} m{1.5cm} m{1.5cm}},
            row{1}={font=\itshape},
            row{2,5-7}={bg=light-blue},
            row{3-4}={bg=light-gray},
            hlines
        }
        & Day
        & Month
        & Hours
        & Feature 1 
        & Feature 2
        & Feature 3\\
        %-------------------------------------------------
        Friday
        & 5 
        & June
        & 
        & A\textsubscript{1}
        & A\textsubscript{2}
        & A\textsubscript{3}
        \\
        %-------------------------------------------------
        \SetCell[r=2]{l} Saturday 
        & \SetCell[r=2]{l} 6 
        & \SetCell[r=2]{l} June
        & 14 -- 21
        & B\textsubscript{1}
        &
        & B\textsubscript{3}
        \\
        &  
        & 
        &
        & C\textsubscript{1}
        & C\textsubscript{2}
        & C\textsubscript{3}
        \\
        % -------------------------------------------------
        \SetCell[r=3]{l} Sunday
        & \SetCell[r=3]{l} 7
        & \SetCell[r=3]{l} June
        & 08 -- 10
        & D\textsubscript{1}
        & D\textsubscript{2}
        & D\textsubscript{3}
        \\
        & 
        &
        & 10 -- 17
        & E\textsubscript{1}
        &
        & E\textsubscript{3}
        \\
        & 
        & 
        & 
        & F\textsubscript{1}
        & F\textsubscript{2}
        & F\textsubscript{3}
        \\
        % -------------------------------------------------
    \end{longtblr}
    
\end{document}