试试这个代码:
\documentclass[a4paper,twocolumn]{article}
\usepackage{cuted}
\usepackage{graphicx}
\usepackage{lipsum}
\begin{document}
\lipsum[1]
\begin{strip}
\begin{center}
\includegraphics[width=\linewidth]{example-image}
\end{center}
\end{strip}
\lipsum[3]
\end{document}
输出: