Beamer 中的页面链接

\documentclass[]{beamer} \usetheme{Madrid} \usenavigationsymbolstemplate{} \title{Main Title} \author{Jane Doe} \institute{University A} \date{\today} \begin{document} \begin{frame} \titlepage % Print the title page as the first slide \end{frame} \begin{frame} \frametitle{First Page} \begin{exampleblock}{Example} This is an example which will be used later. \end{exampleblock} \end{frame} \begin{frame} \frametitle{Second Page} \label{important} \begin{itemize} \item Item 1 \item Item 2 \end{itemize} \end{frame} \begin{frame} \frametitle{Third Page} \begin{itemize} \item In this slide, we are going to use the sample example on slide~\ref{important}. \end{itemize} \end{frame} \end{document}