不明白如何让表格变得更紧凑

Question

警告：LaTeX我对标记和这整个事情还很陌生。

\documentclass[a4paper,svgnames,11pt]{article}

\textheight = 220mm
\textwidth = 150mm
\topmargin = 10mm
\oddsidemargin = 5.0mm
\evensidemargin = 5.0mm
\unitlength = 1mm

\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\pagenumbering{Roman}
\usepackage[margin=2cm]{geometry}
\usepackage[final]{pdfpages}
\usepackage{longtable}
\usepackage{color}
\usepackage{xcolor,colortbl}

\begin{document}

\begin{longtable}{|p{3cm}|p{2cm}|p{2cm}|p{2cm}|p{2cm}|p{2cm}|p{2cm}|}
    \caption{Comparisons}\label{tab1}\small\\
    \hline\rowcolor{Black}
    Column & Column & Column & Column & 
    Column & Column & Column \\ \hline  
    \raggedright Hello & Hello & Hello & Hello & Hello & Hello & \\ \hline
    \raggedright Hello & Hello & Hello & Hello & Hello & Hello & \\ \hline
    \raggedright Hello & Hello & Hello & Hello & Hello & Hello & \\ \hline
\end{longtable}


\end{document}

输出：

如何才能使其变得更紧凑、更容易修改、重复大小、列文本为白色、单元格内稍微居中。

\newcolumntype{F}[1]{%
    >{\raggedright\arraybackslash\hspace{0pt}}p{#1}}%
\newcolumntype{T}[1]{%
    >{\centering\arraybackslash\hspace{0pt}}p{#1}}%

或者，

\newcolumntype{P}[1]{>{\centering\arraybackslash}p{#1}}
\newcolumntype{M}[1]{>{\centering\arraybackslash}m{#1}}

我想要的最终结果，除了：黑色背景，边框和白色列文本。

Answer 1

（对我而言）您不太清楚自己想要什么，所以我想您可能会对以下解决方案感兴趣：

\documentclass{article}
\usepackage{xcolor}
\usepackage{tabularray}
\UseTblrLibrary{siunitx}
\NewTblrTheme{fancy caption}%
{
\SetTblrStyle{caption-text}{\small\itshape}
\SetTblrStyle{caption-tag}{font=\small\bfseries}
}
\ExplSyntaxOn
\NewChildSelector{eachtwohline}
  {
    \int_step_inline:nnnn {4} {2} { \l_tblr_childs_total_tl }
      { \clist_put_right:Nn \l_tblr_childs_clist {##1} }
  }
\ExplSyntaxOff
\usepackage{dingbat}
\newcommand\gcm{\textcolor{teal}{\checkmark}}% GreenCheckMark

\begin{document}
    \begin{talltblr}[
  theme = fancy caption,
caption = {Table caption},
  label = {tab:talltblr}
                    ]{hline{eachtwohline} = {dashed, 0.1pt},
                      colspec = {Q[l,m, wd=33mm] 
                                 *{6}{Q[c,m]}},
                       colsep = 4pt,
                       rowsep = 1pt,  
                     hline{Z} = 1pt,
                         rows = {font=\linespread{0.84}\selectfont},
                       row{1} = {fg=white, bg=black!80},
                     }
Head    & {first\\second}   
                & {first\\second}   
                        & {first\\second} 
                                & {first\\second}   
                                        & {first\\second}   
                                                & {first\\second}
                                                        \\
DAO attack   
        &       & \gcm  &       &       &       &       \\
Attack on wallet software
        &       & \gcm  & \gcm  &       & \gcm  &       \\
Criminal Activity
        &       &       & \gcm  &       &       &       \\
\qty{51}{\%} attack
        &       & \gcm  &       & \gcm  &       &       \\
Pool hopping attack
        &       &       &       &       &       & \gcm  \\
% etc
Distributed Denial of Service (DDoS)
        &       &       & \gcm  &       &       &       \\
    \end{talltblr}
\end{document}

Answer 2

您可以使用tabularray包。它使处理表格样式更加容易。这是一个例子。

\documentclass{article}

\usepackage[margin=2cm]{geometry}
\usepackage{tabularray}
\usepackage{ninecolors}

\begin{document}
\begin{longtblr}[
    caption = {Table cpation},
    label = {tab:long1}
]{
hlines, vlines,
colspec = {Q[3cm, l, m] *{6}{Q[2cm, c, m]}}, %1st column is 3cm and left aligned, all other 6 columns are centered
rows = {bg=black, fg=white, font=\small}, %black background, white text with small font size
rowhead = 1, %1st row will appear in every page
}
Head & Relatively long Head & Head & Head & Head & Head & Head\\ %This row will appear in every page
Hello & \SetCell[r=2]{c} Hello & Long Hello & More long Hello & Hello & Hello &\\
Hello &  & Hello & Hello & Hello & Hello &\\
Hello & Hello & Hello & Hello & Hello & Hello &\\
\end{longtblr}
\end{document}

笔记：

• 您可以考虑避免使用所有垂直线和大部分水平线。这样可以使表格更专业。
• 此表格比文本宽度更宽。您可以考虑减小列宽。

编辑（根据 OP 的评论）：如果您所说的紧凑是指减少行之间的空间，那么您可以使用选项来更改它rowsep。

\documentclass{article}

\usepackage[margin=2cm]{geometry}
\usepackage{tabularray}
\usepackage{ninecolors}

\begin{document}
\begin{longtblr}[
    caption = {Table cpation},
    label = {tab:long1}
]{
% abovesep=0pt,%removes any vertical space above 
% belowsep=0pt,%removes any vertical space below
rowsep = 0pt, %removes any vertical space above and below.
hlines, vlines,
colspec = {Q[3cm, l, m] *{6}{Q[2cm, c, m]}}, %1st column is 3cm and left aligned, all other 6 columns are centered
rows = {font=\small}, %black background, white text with small font size
row{1} = {bg=black, fg=white},
rowhead = 1, %1st row will appear in every page
}
Head & Head & Head & Head & Head & Head & Head\\ %This row will appear in every page
Hello & Hello & Hello & Hello & Hello & Hello &\\
Hello &  & Hello & Hello & Hello & Hello &\\
Hello & Hello & Hello & Hello & Hello & Hello &\\
\end{longtblr}
\end{document}