以下是一个案例研究：
\documentclass{scrreprt}
\usepackage[french]{babel}
\usepackage[bibencoding=auto,backend=biber,autolang,sorting=ynt]{biblatex}
\usepackage[T1]{fontenc}
\usepackage{tcolorbox}
\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@report{foo
,author = {Dupont}
,month = {08}
,title = {\textit{foo}}
,institution = {baz}
,year = {2019}
,language={french}
,hyphenation={french}
}
@report{bar
,author = {Durand}
,title = {\textit{bar}}
,institution = {qux}
,year = {2018}
,month = {08}
,language={french}
,hyphenation={french}
}
\end{filecontents*}
\addbibresource{\jobname.bib}
\tcbuselibrary{breakable}
\begin{document}
\begin{titlepage}
\end{titlepage}
This citation has a matching number under Bib: \cite{foo}, not this one:\cite{bar}. It's totally unacceptable!
\begin{center}
\vspace*{\fill}
\begin{tcolorbox}
[
width=0.9\textwidth
,halign=flush left
,arc=0mm
,title=Bib
,breakable=true
]
\printbibliography[heading=none]
%\printbibliography
\end{tcolorbox}
\end{center}
\end{document}
答案1
不要在框周围放置中心环境。使用 center 键将框置于中心：
\begin{tcolorbox}
[
center,
width=0.9\textwidth
,halign=flush left
,arc=0mm
,title=Bib
,breakable=true
]
