如何在标题和 \numberwithin{figure}{section} 中使用破折号代替点

Question

我的图在部分内进行了编号。我想在图片标题中使用破折号而不是点（例如，图 1-1-3、图 2-7-1），并且不更改部分标题的样式（即保留 、 、 这样的样式1.1）1.2。2.3以下方法失败。如果能帮助我解决此问题，我将不胜感激。

\documentclass{book}

\usepackage{amsmath}
\usepackage{tikz}

\usepackage{caption}
\renewcommand\thefigure{\thesection-\arabic{figure}}
\numberwithin{figure}{section}



\begin{document}

\chapter{} 

\section{}

\section{}

The following caption should be Figure 1-2-1.
\begin{center}
\begin{tikzpicture}
\end{tikzpicture}
\captionof{figure}{}
\end{center}


\section{}

The following caption should be Figure 1-3-1.
\begin{center}
\begin{tikzpicture}
\end{tikzpicture}
\captionof{figure}{}
\end{center}

The following caption should be Figure 1-3-2.
\begin{center}
\begin{tikzpicture}
\end{tikzpicture}
\captionof{figure}{}
\end{center}

The following caption should be Figure 1-3-3.
\begin{center}
\begin{tikzpicture}
\end{tikzpicture}
\captionof{figure}{}
\end{center}


\end{document}

Answer 1

首先你需要\numberwithin{figure}{section}因为这也会重新定义\thefigure。之后你可以重新定义\thefigure（再次）以满足你的需要。明确使用在这两个元素之间\thechapter-\arabic{section}插入。-

\documentclass{book}

\usepackage{amsmath,caption}
\numberwithin{figure}{section}
\renewcommand\thefigure{\thechapter-\arabic{section}-\arabic{figure}}

\begin{document}

\chapter{A chapter}

\section{A section}

\section{Another section}

The following caption should be Figure 1-2-1.
\begin{center}
  \captionof{figure}{A figure caption}
\end{center}

\section{Yet another section}

The following caption should be Figure 1-3-1.
\begin{center}
  \captionof{figure}{Another figure caption}
\end{center}

The following caption should be Figure 1-3-2.
\begin{center}
  \captionof{figure}{Yet another figure caption}
\end{center}

The following caption should be Figure 1-3-3.
\begin{center}
  \captionof{figure}{A final figure}
\end{center}

\end{document}