beamer II 中的嵌套列

Question

我正在尝试关注这个帖子正确对齐列。我想制作一个海报环境，左侧有一列，然后将右侧分成顶部（有两列）和底部（有三列）。但是，这样做似乎会导致右侧出现额外的垂直空间？

以下是一个例子

\documentclass[]{beamer}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usepackage[orientation=landscape,size=a0,scale=1.2,debug]{beamerposter}
\usetheme{Frankfurt}

\begin{document}
\begin{frame}{}
\begin{columns}[t]

\begin{column}{.25\linewidth}
    \begin{block}{\large First column}
        abc
    \end{block}
\end{column}
\begin{column}{.75\linewidth}
    \begin{columns}[t, totalwidth=\textwidth]
        \begin{column}{.5\linewidth}
            \begin{block}{\large First subcolumn}
                abc
            \end{block}
        \end{column}
        \begin{column}{.5\linewidth}
            \begin{block}{\large Second subcolumn}
                abc
            \end{block}
        \end{column}
    \end{columns}
    \begin{columns}[t, totalwidth=\textwidth]
        \begin{column}{.333333\linewidth}
            \begin{block}{\large First subcolumn}
                abc
            \end{block}
        \end{column}
        \begin{column}{.333333\linewidth}
            \begin{block}{\large Second subcolumn}
                abc
            \end{block}
        \end{column}
        \begin{column}{.333333\linewidth}
            \begin{block}{\large Second subcolumn}
                abc
            \end{block}
        \end{column}
    \end{columns}
\end{column}
\end{columns}
\end{frame}
\end{document}

Answer 1

使用[t, totalwidth=\textwidth]最外列。我还适当调整了宽度。

\documentclass[]{beamer}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usepackage[orientation=landscape,size=a0,scale=1.2,debug]{beamerposter}
\usetheme{Frankfurt}

\begin{document}
\begin{frame}{}
\begin{columns}[t, totalwidth=\textwidth]
\begin{column}{.245\linewidth}
    \begin{block}{\large First column}
        abc
    \end{block}
\end{column}%
\begin{column}{.745\linewidth}
    \begin{columns}
        \begin{column}{.5\linewidth}
            \begin{block}{\large First subcolumn}
                abc
            \end{block}
        \end{column}
        \begin{column}{.5\linewidth}
            \begin{block}{\large Second subcolumn}
                abc
            \end{block}
        \end{column}
    \end{columns}
    \begin{columns}
        \begin{column}{.33\linewidth}
            \begin{block}{\large First subcolumn}
                abc
            \end{block}
        \end{column}
        \begin{column}{.33\linewidth}
            \begin{block}{\large Second subcolumn}
                abc
            \end{block}
        \end{column}
        \begin{column}{.33\linewidth}
            \begin{block}{\large Second subcolumn}
                abc
            \end{block}
        \end{column}
    \end{columns}
\end{column}
\end{columns}
\end{frame}
\end{document}