考虑以下“恐怖表”，其中的代码既不简洁，又极其丑陋：
\documentclass[
a4paper,
landscape,
12pt,
danish
]{article}
\usepackage{inputenc}
\usepackage[T1]{fontenc}
\usepackage{babel}
\usepackage[
hmargin = 2.0cm,
vmargin = 2.6cm
]{geometry}
\usepackage{booktabs,multirow}
\usepackage{microtype}
\def\mlrA{\hskip 2.5em}
\def\mlrB{\hskip 0.8em}
\def\mlrC{2ex}
\def\pause{5ex}
\newcommand*\mc[1]{\multicolumn{3}{@{}c@{\mlrA}}{\mlrB#1}}
\newcommand*\mr[1]{\multirow{2}{*}{#1}}
\newcommand*\mcr[8]{\multicolumn{#1}{c}{\multirow{#2}{*}{\hspace*{#3em}#4\hspace*{#5em}#6\hspace*{#7em}#8}}}
\newcommand*\intet{\mcr{2}{1}{0}{}{0}{}{0}{}}
\newcommand*\Alignment[1]{% Justering ved `--'.
\multicolumn{1}{r@{}}{\llap{\makebox[\widthof{--}][c]{#1}}}}
\newcommand*\moeder{\mc{Møder}}
\DisableLigatures[f]{encoding = T1}
\pagestyle{empty}
\begin{document}
\begin{center}
\bfseries
\Huge
Skema for skoleåret~2021/2022
\end{center}
\vspace*{3.28ex}
\begin{center}
\renewcommand*{\arraystretch}{1.2}
\begin{tabular}{
c @{\mlrB}
r @{\,--\,}
*{5}{
l @{\mlrA}
l @{\mlrB}
l @{\mlrB}
}
l
}
\toprule
{Lektion}
& \multicolumn{2}{@{}c@{\mlrA}}{Tidsrum}
& \mc{Mandag}
& \mc{Tirsdag}
& \mc{Onsdag}
& \mc{Torsdag}
& \mc{Fredag} \\
\midrule
1 & 7:55 & 8:40 & 8.Y & F/K & C-29 & & & & 9.C & F/K & C-29 & 7.B & F/K & C-29 & 8.X & MAT & C-11 \\[\mlrC]
2 & 8:40 & 9:25 & 8.Y & F/K & C-29 & 8.X & MAT & C-11 & 9.C & F/K & C-29 & 7.B & F/K & C-29 & & & \\[\mlrC]
& 9:25 & 9:40 & \mc{Pause} & \mc{Pause} & \mc{Pause} & \mc{Pause} & \mc{Pause} \\[\mlrC]
3 & 9:40 & 10:25 & 8.X & MAT & C-11 & & & & & & & 9.A & F/K & C-29 & 9.C & F/K & C-29 \\[\mlrC]
4 & \multicolumn{2}{c}{\multirow{2}{*}{\hspace*{-2.5em}10:25\,--\,11:10}}
& \mcr{3}{1}{-2.5}{7.B}{0.9}{STU}{1.0}{C-16}
& \mcr{3}{2}{-2.5}{7.A}{0.85}{STJ}{1.3}{C-14}
& \mcr{3}{2}{-2.5}{7.A}{0.85}{STJ}{0.9}{C-14}
& \mcr{3}{2}{-2.5}{9.A}{0.85}{STJ}{0.8}{C-29}
& \mcr{3}{2}{-0.5}{9.C}{0.80}{STJ}{1.2}{C-29} \\
& \intet & 8.X & MAT & C-11 & & & & & & & & & & & & \\[\mlrC]
& 11:10 & 11:35 & \mc{Pause} & \mc{Pause} & \mc{Pause} & \mc{Pause} & \mc{Pause} \\
& 11:35 & 11:50 & \mc{Spisepause} & \mc{Spisepause} & \mc{Spisepause} & \mc{Spisepause} & \mc{Spisepause} \\[\mlrC]
5 & 11:50 & 12:35 & & & & & & & & & & & & & & & \\[\mlrC]
6 & 12:35 & 13:05 & 8.Y & STJ & C-12 & 8.X & F/K & C-29 & 9.A & F/K & C-29 & 7.A & F/K & C-29 & & & \\[\mlrC]
7 & 13:05 & 13:50 & & & & 8.X & F/K & C-29 & 9.A & F/K & C-29 & 7.A & F/K & C-29 & & & \\[\mlrC]
& 13:50 & 14:00 & \mc{Pause} & \mc{Pause} & \mc{Pause} & \mc{Pause} & \mc{Pause} \\[\mlrC]
8 & 14:00 & 14:45 & & & & & & & & & & \mc{Team, 8.~årg.} & & & \\
\bottomrule
\end{tabular}
\end{center}
\end{document}
问题（请求）
我需要帮助来改进代码和输出。真的不好而且我又累又沮丧。:-(（更新：输出的问题主要是水平对齐；文本没有在每个 3 列部分居中。）
PS，我知道所有硬编码的长度都是（也是？）错误的，但我只是想不出如何修复它。
答案1
我认为你从错误的角度看待这个问题。
\documentclass[
a4paper,
landscape,
12pt,
danish
]{article}
%%%%%%%%%%%%%%%%
%% %%
%% Pakker %%
%% %%
%%%%%%%%%%%%%%%%
% Skrifttypekodning for input.
%\usepackage{inputenc} % what for?
% Skrifttypekodning for output.
\usepackage[T1]{fontenc}
% Sprog.
\usepackage{babel}
% Marginer.
\usepackage[
hmargin = 2.0cm,
vmargin = 2.6cm
]{geometry}
% Tabeller.
\usepackage{
booktabs,
}
% Mikrotypografiudvidelser til pdfTeX.
\usepackage{microtype}
%%%%%%%%%%%%%%%%%
%% %%
%% Makroer %%
%% %%
%%%%%%%%%%%%%%%%%
\newcommand{\lect}[3]{%
\makebox[1.5em][l]{#1}\makebox[3.5em]{#2}\makebox[2em][r]{#3}%
}
% Fjerner ligaturer ved `f'.
\DisableLigatures[f]{encoding = T1}
% Opsætning af sidehoved og -fod.
\pagestyle{empty}
%%%%%%%%%%%%%%%%%%%%%%%%%%
%% %%
%% Selve dokumentet %%
%% %%
%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}
\begin{center}
\bfseries
\Huge
Skema for skoleåret~2021/2022
\end{center}
\begin{center}
\begin{tabular}{ @{} *{7}{c} @{} }
\toprule
Lektion & Tidsrum & Mandag & Tirsdag & Onsdag & Torsdag & Fredag \\
\midrule
1 & 7:55--8:40 &
\lect{8.Y}{F/K}{C-29} &
&
\lect{9.C}{F/K}{C-29} &
\lect{7.B}{F/K}{C-29} &
\lect{8.X}{MAT}{C-11} \\
\addlinespace
2 & 8:40--9:25 &
\lect{8.Y}{F/K}{C-29} &
\lect{8.X}{MAT}{C-11} &
\lect{9.C}{F/K}{C-29} &
\lect{7.B}{F/K}{C-29} &
\\
\addlinespace
& 9:25--9:40 & Pause & Pause & Pause & Pause & Pause \\
\addlinespace
3 & 9:40--10:25 &
\lect{8.X}{MAT}{C-11} &
&
&
\lect{9.A}{F/K}{C-29} &
\lect{9.C}{F/K}{C-29} \\
\addlinespace
4 & 10:25--11:10 &
\begin{tabular}{@{}c@{}}\lect{7.B}{STU}{C-16} \\ \lect{8.X}{MAT}{C-11}\end{tabular} &
\lect{7.A}{STJ}{C-14} &
\lect{7.A}{STJ}{C-14} &
\lect{9.A}{STJ}{C-29} &
\lect{9.C}{STJ}{C-29} \\
\addlinespace
& 11:10--11:35 & Pause & Pause & Pause & Pause & Pause \\
& 11:35--11:50 & Spisepause & Spisepause & Spisepause & Spisepause & Spisepause \\
\addlinespace
5 & 11:50--12:35 \\
\addlinespace
6 & 12:35--13:05 &
\lect{8.Y}{STJ}{C-12} &
\lect{8.X}{F/K}{C-29} &
\lect{9.A}{F/K}{C-29} &
\lect{7.A}{F/K}{C-29} &
\\
\addlinespace
7 & 13:05--13:50 &
&
\lect{8.X}{F/K}{C-29} &
\lect{9.A}{F/K}{C-29} &
\lect{7.A}{F/K}{C-29} &
\\
\addlinespace
& 13:50--14:00 & Pause & Pause & Pause & Pause & Pause \\
\addlinespace
8 & 14:00--14:45 & & & & Team, 8.~årg. & \\
\bottomrule
\end{tabular}
\end{center}
\end{document}
在命令中调整大小\lect。
