答案1
我想说这是Copenhagen
主题的原色不同。脚注线左侧缺少分隔线,这让我相信这是用户定义的脚注线。(以下示例需要 beamer 版本 >= 3.48)
\documentclass{beamer}
\usetheme{Copenhagen}
\author{names}
\title{text}
\setbeamercolor{palette primary}{bg=blue}
\setbeamertemplate{page number in head/foot}[totalframenumber]
\makeatletter
\setbeamertemplate{footline}{%
\leavevmode%
\hbox{\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm]{title in head/foot}%
\usebeamerfont{title in head/foot}\insertshorttitle
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm]{date in head/foot}%
\usebeamerfont{date in head/foot}\hfill\insertshortdate\quad\usebeamertemplate{page number in head/foot}
\end{beamercolorbox}}%
\vskip0pt%
}
\makeatother
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\section{title}
\begin{frame}
\frametitle{title}
content...
\end{frame}
\end{document}