Latex图片展示：一行与一列
一行展示：
\begin{figure}[!h]\vspace{-4mm}
\centering
\subfloat[Effect of the bandwidth $B$.]{\includegraphics[width=0.25\textwidth]{Figure/Prob_tmax.eps}
\label{bandwidth}}
%\hspace{0.5cm}
\subfloat[Effect of the transmission power $P_n$.]{\includegraphics[width=0.25\textwidth]{Figure/Prob_Bandwidth.eps}\label{power}}
\caption{Performance comparison of different schemes.}
\label{comparison}
\vspace{-2mm}
\end{figure}
一列展示：
\begin{figure}[!t]\vspace{-4mm}
\centering
\subfloat[The.]{\includegraphics[width=0.23\textwidth]{Figure/Prob_tmax.eps}
\label{BCD_convergence}}
\hspace{0.5cm}
\centering
\subfloat[The.]{\includegraphics[width=0.23\textwidth]{Figure/Prob_Bandwidth.eps}
\label{SAC_convergence}}
\caption{Convergence performance of the two proposed algorithms.}
\label{convergence}
\end{figure}
\section{Conclusion}