投影仪演示中的章节和小节编号

Question

我正在尝试将“第 1 节”和“第 1 小节”替换为节和小节名称前的相应数字。即：“1 这是第一节”和“1.1 这是第一小节”。基本上，我想使用与普通 LaTeX 文档相同的编号程序，但我不知道如何实现这一点。

\documentclass[xcolor=dvipsnames]{beamer}

\usetheme{Frankfurt}     
\usecolortheme{crane} 
\usefonttheme{default}
\setbeamertemplate{caption}[numbered]
\setbeamertemplate{section in toc}[sections numbered]
\setbeamertemplate{subsection in toc}[subsections numbered]

\title{Some title}
\author{Someone}
\date{today}

\begin{document}

\maketitle

\begin{frame}
  \section{This is the first section}
  \sectionpage
  \subsection{This is the first subsection}
  \subsectionpage
\end{frame}

\end{document}

Answer 1

（请注意，诸如等分段命令\section应\subsection始终位于框架环境之外）

您可以像这样重新定义章节和子章节页面的模板：

\documentclass[xcolor=dvipsnames]{beamer}

\usetheme{Frankfurt}     
\usecolortheme{crane} 
\usefonttheme{default}
\setbeamertemplate{caption}[numbered]
\setbeamertemplate{section in toc}[sections numbered]
\setbeamertemplate{subsection in toc}[subsections numbered]

\title{Some title}
\author{Someone}
\date{today}

\makeatletter
\setbeamertemplate{section page}
{
  \begingroup
    \centering
%    {\usebeamerfont{section name}\usebeamercolor[fg]{section name}\sectionname~\insertsectionnumber}
    \vskip1em\par
    \begin{beamercolorbox}[sep=12pt,center,colsep=-4bp,rounded=true,shadow=true]{section title}
      \usebeamerfont{section title}\insertsectionnumber~\insertsection\par
    \end{beamercolorbox}
  \endgroup
}
\setbeamertemplate{subsection page}
{
  \begingroup
    \centering
%    {\usebeamerfont{subsection name}\usebeamercolor[fg]{subsection name}\subsectionname~\insertsubsectionnumber}
    \vskip1em\par
    \begin{beamercolorbox}[sep=8pt,center,colsep=-4bp,rounded=true,shadow=true]{subsection title}
      \usebeamerfont{subsection title}\insertsubsectionnumber~\insertsubsection\par
    \end{beamercolorbox}
  \endgroup
}
\makeatother

\begin{document}

\maketitle

  \section{This is the first section}
    \subsection{This is the first subsection}

\begin{frame}
  \sectionpage
  \subsectionpage
\end{frame}

\end{document}