LaTeX技巧754:按照算法标题样式定制listings的标题

标题样式图:实现代码如下:

\documentclass{article}
\usepackage{listings}
\usepackage{caption}

\lstset{
language=C++,
basicstyle=\small\ttfamily,
numbers=left,
numbersep=5pt,
xleftmargin=20pt,
frame=tb,
framexleftmargin=20pt
}

\renewcommand*\thelstnumber{\arabic{lstnumber}:}

\DeclareCaptionFormat{mylst}{\hrule#1#2#3}
\captionsetup[lstlisting]{format=mylst,labelfont=bf,singlelinecheck=off,labelsep=space}

\begin{document}

\begin{lstlisting}[caption={test algorithm}]
#include
using namespace std;

int main()
{
cout << "Welcome to the wonderful world of C++!!!\n";
return 0;
}
\end{lstlisting}

\end{document}

选自:http://tex.stackexchange.com/questions/73392/how-to-make-lstlisting-look-exactly-like-the-algorithm-environment