在我的 Beamer 演示文稿中，参考书目项直到第 9 项都正确缩进。但从第 10 项开始的幻灯片看起来很奇怪。有趣的是，此后一切都很好。附有最少的代码和屏幕截图。
\documentclass[xcolor={dvipsnames,table},11pt]{beamer}
\setbeamertemplate{bibliography item}{[\theenumiv]}
\begin{document}
\begin{frame}
\begin{thebibliography}{\bibindent}
\bibitem{} This is the first line of item 1\\ and this is the second ine. \\ Both of them have the same indentation.
\bibitem{} The second item \\ also has the same pattern
\bibitem{} Everything is fine until item 9
\end{thebibliography}
\end{frame}
\begin{frame}
\begin{thebibliography}{\bibindent}
\setcounter{enumiv}{9}
\bibitem{} This is item 10, line one\\ and this is the second line.\\ As you can see, the indentations are not the same.
\bibitem{} The same is the case for all the \\remaining items in this page
\end{thebibliography}
\end{frame}
\begin{frame}
\begin{thebibliography}{\bibindent}
\setcounter{enumiv}{10}
\bibitem{} But everything comes fine after that\\ All the remaining pages are fine.
\end{thebibliography}
\end{frame}
\end{document}
任何有关此问题的建议都会有帮助。提前致谢。
答案1
解决方法：
您可以将标签放在固定宽度的盒子中，让 beamer 相信所有标签都具有相同的宽度：
\documentclass[xcolor={dvipsnames,table},11pt]{beamer}
\setbeamertemplate{bibliography item}{\makebox[1.5em]{[\theenumiv]\hfill}}
\begin{document}
\begin{frame}[allowframebreaks]
\begin{thebibliography}{}
\bibitem{} This is the first line of item 1\\ and this is the second ine. \\ Both of them have the same indentation.
\bibitem{} The second item \\ also has the same pattern
\bibitem{} Everything is fine until item 9
\bibitem{} This is item 10, line one\\ and this is the second line.\\ As you can see, the indentations are not the same.
\bibitem{} The same is the case for all the \\remaining items in this page
\bibitem{} But everything comes fine after that\\ All the remaining pages are fine.
\bibitem{} This is the first line of item 1\\ and this is the second ine. \\ Both of them have the same indentation.
\bibitem{} The second item \\ also has the same pattern
\bibitem{} Everything is fine until item 9
\bibitem{} This is item 10, line one\\ and this is the second line.\\ As you can see, the indentations are not the same.
\bibitem{} The same is the case for all the \\remaining items in this page
\bibitem{} But everything comes fine after that\\ All the remaining pages are fine.
\end{thebibliography}
\end{frame}
\end{document}
或者，为了使项目和文本之间的间距恒定，可以将标签右对齐。这样做可以防止文本对齐在 [9] 和 [10] 之间跳跃。
\documentclass[xcolor={dvipsnames,table},11pt]{beamer}
\setbeamertemplate{bibliography item}{\makebox[1.5em]{\hfill[\theenumiv]}}
\begin{document}
\begin{frame}[allowframebreaks]
\begin{thebibliography}{}
\bibitem{} This is the first line of item 1\\ and this is the second ine. \\ Both of them have the same indentation.
\bibitem{} The second item \\ also has the same pattern
\bibitem{} Everything is fine until item 9
\bibitem{} This is item 10, line one\\ and this is the second line.\\ As you can see, the indentations are not the same.
\bibitem{} The same is the case for all the \\remaining items in this page
\bibitem{} But everything comes fine after that\\ All the remaining pages are fine.
\bibitem{} This is the first line of item 1\\ and this is the second ine. \\ Both of them have the same indentation.
\bibitem{} The second item \\ also has the same pattern
\bibitem{} Everything is fine until item 9
\bibitem{} This is item 10, line one\\ and this is the second line.\\ As you can see, the indentations are not the same.
\bibitem{} The same is the case for all the \\remaining items in this page
\bibitem{} But everything comes fine after that\\ All the remaining pages are fine.
\end{thebibliography}
\end{frame}
\end{document}
答案2
修改你的序言如下：
%\setbeamertemplate{bibliography item}{[\theenumiv]} % D'oh!!!
\setbeamertemplate{bibliography item}[text]
\def\bibindent{99}
结果：
但是如果你想要标签右对齐，请使用以下命令：
%\setbeamertemplate{bibliography item}{[\theenumiv]} % D'oh!!!
\setbeamertemplate{bibliography item}{\hfill\insertbiblabel}
\def\bibindent{99}
向此框架添加项目 9，结果是：
在这种情况下，这与将 bib 项目定义为完全相同 \hfill[\theenumiv]，但是使用书目样式，最好将标签保留为该样式的定义。