插入代码
导言区加入listings包
usepackage{listings}
代码框
将代码包在如下命令中：
egin{lstlisting}[title=Myfile, frame=shadowbox]
% 代码段
end{lstlisting}
可以显示代码框，并以 Myfile 做为文件名
预先设置模板(from: wikipedia)
usepackage{listings}
usepackage{color}
definecolor{dkgreen}{rgb}{0,0.6,0}
definecolor{gray}{rgb}{0.5,0.5,0.5}
definecolor{mauve}{rgb}{0.58,0,0.82}
lstset{ %
language=Octave, % the language of the code
basicstyle=footnotesize, % the size of the fonts that are used for the code
numbers=left, % where to put the line-numbers
numberstyle= inycolor{gray}, % the style that is used for the line-numbers
stepnumber=2, % the step between two line-numbers. If it"s 1, each line
% will be numbered
numbersep=5pt, % how far the line-numbers are from the code
backgroundcolor=color{white}, % choose the background color. You must add usepackage{color}
showspaces=false, % show spaces adding particular underscores
showstringspaces=false, % underline spaces within strings
showtabs=false, % show tabs within strings adding particular underscores
frame=single, % adds a frame around the code
rulecolor=color{black}, % if not set, the frame-color may be changed on line-breaks within not-black text (e.g. commens (green here))
tabsize=2, % sets default tabsize to 2 spaces
captionpos=b, % sets the caption-position to bottom
breaklines=true, % sets automatic line breaking
breakatwhitespace=false, % sets if automatic breaks should only happen at whitespace
title=lstname, % show the filename of files included with lstinputlisting;
% also try caption instead of title
keywordstyle=color{blue}, % keyword style
commentstyle=color{dkgreen}, % comment style
stringstyle=color{mauve}, % string literal style
escapeinside={\%*}{*)}, % if you want to add LaTeX within your code
morekeywords={*,...} % if you want to add more keywords to the set
}