如何在表格內繪製向下箭頭？

Question

我想在表格內繪製一個 \downarrow （或任何箭頭）。如下表所示：

我想變得更像這樣：

這是我的程式碼：

$\rotatebox[origin=c]{90}{}%
\left\Downarrow
\begin{tabular}{lrr}
\toprule
 {} & Aantal Zetels & Aantal Zetels           \\
 Strategie & Vrouwen & Mannen \\
\midrule
a &        10 &        0\\
b   &        4 &           6 \\
a    &        8 &  2\\
b    &        5 &           5 \\
a     &        7 &    3 \\
b  &        6 &          4 \\
\bottomrule
\end{tabular}
\right.
\rotatebox[origin=c]{90}{}$

誰能幫我嗎？

Answer 1

由於您的問題已被標記tikz-pgf，我想\tikzmark解決方案就很好。您必須運行 LaTeX 兩次才能使箭頭顯示在正確的位置。

\documentclass{article}
\usepackage{booktabs,tikz}
\newcommand\tikzmark[1]{\tikz[remember picture] \node (#1) {};}
\begin{document}
\begin{tabular}{lrr}
  \toprule
  & Aantal Zetels & Aantal Zetels \\
  Strategie & Vrouwen & Mannen \\
  \midrule
  a \tikzmark{a} & 10 & 0 \\
  b & 4 & 6 \\
  a & 8 & 2 \\
  b & 5 & 5 \\
  a & 7 & 3 \\
  b \tikzmark{b} & 6 & 4 \\
  \bottomrule
\end{tabular}
\tikz[remember picture,overlay] \draw[->] (a.center -| b.center) -- (b.center);
\end{document}

Answer 2

解決方案pstricks：

\documentclass[a4paper, x11names]{article}
\usepackage{array, rotating, booktabs}
\usepackage{pst-node}
\usepackage{auto-pst-pdf}

\begin{document}

\begin{postscript}%
  \begin{tabular}{lcrr}
    \toprule
      & & Aantal Zetels & Aantal Zetels \\
    \multicolumn{2}{l}{ Strategie} & Vrouwen & Mannen \\
    \midrule
    a & \pnode{B} & 10 & 0 \\
    b & & 4 & 6 \\
    a & & 8 & 2 \\
    b & & 5 & 5 \\
    a & & 7 & 3 \\
    b & \Rnode{E} & 6 & 4 \\
    \bottomrule
    \ncline[arrows=->, arrowinset=0.12, offset=-6pt]{B}{E}
  \end{tabular}
\end{postscript}

\end{document}