i try to insert a picture in one columns in my document which is in two columns but it don't works (my figure disappear)

Code: Select all
\begin{multicols}{2}
\begin{figure} %permet de faire une figure flottante
\begin{center} %pour centrer la figure
\includegraphics[scale=0.3]{iopipipiopoiuy.ps}
\end{center}
\caption{fghjfghfghfg} %légende de la figure
\label{zdokhze}
\end{figure}
\end{multicols}
thanks
