%而下面这组命令可以使公式编号随着每开始新的一节而重新开始。
%\makeatletter % '@' is now a normail "letter" for TeX
%\@addtoreset{equation}{section}
%\makeatother % '@' is restored as a "non-letter" character for TeX
\begin{figure} %并排插入四个子图形
\subfigure[Small Box with a Long Caption]{
\label{fig:mini:subfig:a} %% label for first subfigure
\begin{minipage}{0.5\textwidth}
\centering
\includegraphics[width=2in]{2.eps}
\end{minipage}}
\hfill
\subfigure[Big Box]{
\label{fig:mini:subfig:b} %% label for second subfigure
\begin{minipage}{0.5\textwidth}
\centering
\includegraphics[width=2in]{3.eps}
\end{minipage}}
\subfigure[Small Box with a Long Caption]{
\label{fig:mini:subfig:c} %% label for third subfigure
\begin{minipage}{0.5\textwidth}
\centering
\includegraphics[width=2in]{2.eps}
\end{minipage}}
\hfill
\subfigure[Big Box]{
\label{fig:mini:subfig:d} %% label for forth subfigure
\begin{minipage}{0.5\textwidth}
\centering
\includegraphics[width=2in]{3.eps}
\end{minipage}}
\caption{Minipages Inside Subfigures}
\label{fig:mini:subfig} %% label for entire figure
\end{figure}