\usepackage{mathrsfs}
\usepackage{amsmath}
\usepackage{graphicx} 宏包
\includegraphics{graph01.eps} %插入图片graph01.eps
figure 环境，
\begin{figure}
\centering
\includegraphis[scale=2,angle=30]{graph01.eps}
\caption{This is a figure.}
\end{figure}
原文：http://www.cnblogs.com/alsofly/p/3615858.html