579. LaTeX技巧78：如何自定义章节的标题格式

效果如图

代码如下所示

\documentclass{article}
\usepackage{times}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{183.0pt}

\makeatletter
\newcommand\Csub{\@startsection{subsection}{2}%
 {0pt}{-\baselineskip}{.2\baselineskip}%
 {\centering\itshape}}
\newcommand\Lsub{\@startsection{subsection}{2}%
 {0pt}{-\baselineskip}{.2\baselineskip}%
 {\raggedright\sffamily}}
\newcommand\Rsub{\@startsection{subsection}{2}%
 {0pt}{-\baselineskip}{.2\baselineskip}%
 {\raggedleft\MakeUppercase}}
\newcommand\Hsub{\@startsection{subsection}{2}%
 {0pt}{-\baselineskip}{.2\baselineskip}%
 {\hrule\medskip\itshape}}
\makeatother

\begin{document}
\section{A very long heading that shows
         the default behavior of \LaTeX's
         sectioning commands}
\Csub{A subsection heading}
The heading is centered using an italic font.
\Lsub{A subsection heading}
The heading is left-justified using a sans
serif font.
\Rsub{A subsection heading}
The heading is right-justified and uses
uppercase letters.
\Hsub{A subsection heading}
This heading has a horizontal rule above
the text.
\end{document}