我正在尝试使用 latex 创建 beamer 演示文稿。我需要在一张幻灯片上展示一些代码片段，因此借助这个网站，我使用 minipages 和列创建了它们。
我创建了一个最小示例来展示以下行为，包括其产生的屏幕截图。
我认为应该可以将这 3 个代码清单稍微移到顶部，以便它们适合一张幻灯片。
我在这里尝试了一些建议，但没有取得好的结果。
任何帮助是极大的赞赏。
\documentclass{beamer}
% \documentclass[trans]{beamer} %om te printen!
% \transglitter etc: kunt ge pas zien op Full Screen (Ctrl+L)
\usepackage{etex}
\usepackage{graphicx,multicol}
\usepackage[all]{xy}
\usepackage{beamerouterthememiniframes, srcltx,hyperref}
\usepackage{bbding} % checkmark
\usepackage{xcolor}
\usepackage{listings}
\usepackage{color}
\usepackage{float}
\setbeamercolor{normal text}{fg=black!70}
\setbeamertemplate{navigation symbols}{}%geen navigatie
\setbeamertemplate{blocks}[rounded][shadow=true]
\setbeamercovered{dynamic} %te komen items in lichtgrijs
% \setbeamercolor{background canvas}{bg=black!0}%is wit
% \logo{\vspace{-1.2cm}\\
% \hfill\includegraphics[height=3cm]{VUB_schild}}
% plaatst het logo op elke slide onderaan
\newcommand{\Z}{\mathbb{Z}} \newcommand{\Q}{\mathbb{Q}}
\newcommand{\R}{\mathbb{R}} \newcommand{\N}{\mathbb{N}}
\newcommand{\C}{\mathbb{C}} \newcommand{\U}{\mathcal{U}}
\newcommand{\z}{\mathcal{Z}}
%%% Listing
\lstset{%
% backgroundcolor=\color{yellow!20},%
basicstyle=\small\ttfamily,%
numbers=left,
numberstyle=\tiny,
stepnumber=1,
numbersep=5pt,%
belowcaptionskip=0em,
% belowskip=-2em,
% aboveskip=-2em,
}%
% Add your keywords here, and have this in a separate file
% and include it in your preamble
\lstset{emph={%
atomic, receive, send%
},emphstyle={\color{red}\bfseries}%
}%
% \columnsep=1.8cm %\columnseprule=.4pt
\title{Combining Actors and Software Transactional Memory}
\author{Christophe De Troyer}
\date{}
\begin{document}
\begin{frame}[fragile]{Dependency Introduction}
\begin{minipage}[t]{\linewidth}
\begin{columns}
\column[t]{5cm}
\begin{lstlisting}
// Actor A
atomic {
send b m;
}
\end{lstlisting}
\column[t]{5cm}
Sending from inside atomic block makes that atomic block a dependee.
\end{columns}
\end{minipage}
\begin{minipage}[t]{\linewidth}
\begin{columns}
\column[t]{5cm}
\begin{lstlisting}
// Actor B
receive m {
atomic {
send c n;
}
}
\end{lstlisting}
\column[t]{5cm}
Receiving a message from an atomic block makes the receiver dependent on
that atomic block.
\end{columns}
\end{minipage}
\begin{minipage}[t]{\linewidth}
\begin{columns}
\column[t]{5cm}
\begin{lstlisting}
// Actor C
receive n {
do_stuff();
}
\end{lstlisting}
\column[t]{5cm}
Dependencies piggyback on sends. \texttt{b} now depends on both atomic blocks.
\end{columns}
\end{minipage}
\end{frame}
\end{document}
答案1
我会扔掉小页面（column已经是了minipage）并且不会在顶部对齐。
\documentclass{beamer}
% \documentclass[trans]{beamer} %om te printen!
% \transglitter etc: kunt ge pas zien op Full Screen (Ctrl+L)
\usepackage{etex}
\usepackage{graphicx,multicol}
\usepackage[all]{xy}
\usepackage{beamerouterthememiniframes, srcltx,hyperref}
\usepackage{bbding} % checkmark
\usepackage{xcolor}
\usepackage{listings}
\usepackage{color}
\usepackage{float}
\setbeamercolor{normal text}{fg=black!70}
\setbeamertemplate{navigation symbols}{}%geen navigatie
\setbeamertemplate{blocks}[rounded][shadow=true]
\setbeamercovered{dynamic} %te komen items in lichtgrijs
% \setbeamercolor{background canvas}{bg=black!0}%is wit
% \logo{\vspace{-1.2cm}\\
% \hfill\includegraphics[height=3cm]{VUB_schild}}
% plaatst het logo op elke slide onderaan
\newcommand{\Z}{\mathbb{Z}} \newcommand{\Q}{\mathbb{Q}}
\newcommand{\R}{\mathbb{R}} \newcommand{\N}{\mathbb{N}}
\newcommand{\C}{\mathbb{C}} \newcommand{\U}{\mathcal{U}}
\newcommand{\z}{\mathcal{Z}}
%%% Listing
\lstset{%
% backgroundcolor=\color{yellow!20},%
basicstyle=\small\ttfamily,%
numbers=left,
numberstyle=\tiny,
stepnumber=1,
numbersep=5pt,%
belowcaptionskip=0em,
% belowskip=-2em,
% aboveskip=-2em,
}%
% Add your keywords here, and have this in a separate file
% and include it in your preamble
\lstset{emph={%
atomic, receive, send%
},emphstyle={\color{red}\bfseries}%
}%
% \columnsep=1.8cm %\columnseprule=.4pt
\title{Combining Actors and Software Transactional Memory}
\author{Christophe De Troyer}
\date{}
\begin{document}
\begin{frame}[fragile]{Dependency Introduction}
\begin{columns}
\begin{column}{5cm}
\begin{lstlisting}
// Actor A
atomic {
send b m;
}
\end{lstlisting}
\end{column}
\begin{column}{5cm}
Sending from inside atomic block makes that atomic block a dependee.
\end{column}
\end{columns}
\begin{columns}
\begin{column}{5cm}
\begin{lstlisting}
// Actor B
receive m {
atomic {
send c n;
}
}
\end{lstlisting}
\end{column}
\begin{column}{5cm}
Receiving a message from an atomic block makes
the receiver dependent on that atomic block.
\end{column}
\end{columns}
\begin{columns}
\begin{column}{5cm}
\begin{lstlisting}
// Actor C
receive n {
do_stuff();
}
\end{lstlisting}
\end{column}
\begin{column}{5cm}
Dependencies piggyback on sends. \texttt{b} now depends on both
atomic blocks.
\end{column}
\end{columns}
\end{frame}
\end{document}