我被困在这里，我无法减少章节命令前后的边距，我尝试了命令标题间距但什么也没发生。
如何减少这个空间？
代码 ：
\documentclass[a4paper,12pt]{report}
\usepackage[french]{babel}
\usepackage[utf8x]{inputenc}
\usepackage[explicit]{titlesec}
\usepackage[Glenn]{fncychap}
\titlespacing{\chapter}{0}{1pt}{2pt}
\begin{document}
\chapter{Introduction}
\section{Les Escherichia coli pathogènes}
\subsection{Caractères généraux}
Escherichia coli (E.coli) est un bacille à
\end{document}
我想要减少的空格是标题前后的空格。
结果 ：
提前谢谢 <3 <3 <3
鞠
答案1
我添加了两个长度来控制间距：一个在页面顶部和章节标题之间（\beforechapter），一个在章节标题和下面的文本之间（\afterchapter）
由于您使用fncychap它来布置章节标题，titleec因此在这里无关紧要。
更新
现在包括所要求的目录和参考书目页。
\documentclass[a4paper,12pt]{report}
\usepackage[french]{babel}
\usepackage[utf8]{inputenc}
\usepackage{showframe} % show margins
\renewcommand*\ShowFrameColor{\color{red}}
\usepackage[Glenn]{fncychap}
%% *********************************************** added
\newlength{\beforechapter}
\newlength{\afterchapter}
\setlength{\beforechapter}{-3\baselineskip} % substract some space before the chapter title <<<<<<
\setlength{\afterchapter}{2\baselineskip} % add space after chapter title <<<<<<<<<<<<<
\makeatletter
\renewcommand{\DOCH}{%
\settoheight{\myhi}{\CTV\FmTi{Test}}
\setlength{\py}{\baselineskip}
\addtolength{\py}{\RW}
\addtolength{\py}{\myhi}
\setlength{\pyy}{\py}
\addtolength{\pyy}{-1\RW}
\vskip \beforechapter
\raggedright
\CNV\FmN{\@chapapp}\space\CNoV\thechapter
\hskip 3pt\mghrulefill{\RW}\rule[-1\pyy]{2\RW}{\py}\par\nobreak}
\renewcommand{\DOTI}[1]{%
\addtolength{\pyy}{-4pt}
\settoheight{\myhi}{\CTV\FmTi{#1}}
\addtolength{\myhi}{\py}
\addtolength{\myhi}{-1\RW}
\vskip -1\pyy
\rule{2\RW}{\myhi}\mghrulefill{\RW}\hskip 2pt
\raggedleft\CTV\FmTi{#1}\par\nobreak
\vskip \afterchapter
}
\def\@makeschapterhead#1{%
\vspace*{50\p@}%
\vskip \beforechapter
{\parindent \z@ \raggedright
\normalfont
\interlinepenalty\@M
\DOTIS{#1}
\vskip -40\p@
\vskip \afterchapter}
}
\makeatother
%% *********************************************** added
\begin{document}
\tableofcontents
\chapter{Introduction}
\section{Les Escherichia coli pathogènes}
\subsection{Caractères généraux}
Escherichia coli (E.coli) est un bacille à
\chapter{Method}
Three items are cited: \textit{The \LaTeX\ Companion}
book \cite{latexcompanion}, the Einstein journal paper \cite{einstein}, and the
Donald Knuth's website \cite{knuthwebsite}. The \LaTeX\ related items are
\cite{latexcompanion,knuthwebsite}.
\begin{thebibliography}{9}
\bibitem{latexcompanion}
Michel Goossens, Frank Mittelbach, and Alexander Samarin.
\textit{The \LaTeX\ Companion}.
Addison-Wesley, Reading, Massachusetts, 1993.
\bibitem{einstein}
Albert Einstein.
\textit{Zur Elektrodynamik bewegter K{\"o}rper}. (German)
[\textit{On the electrodynamics of moving bodies}].
Annalen der Physik, 322(10):891–921, 1905.
\bibitem{knuthwebsite}
Knuth: Computers and Typesetting,
\\\texttt{http://www-cs-faculty.stanford.edu/\~{}uno/abcde.html}
\end{thebibliography}
\end{document}