\usepackage{multicol}
\begin{multicols}{2}
\end{multicols}
转载于:https://www.cnblogs.com/sunleecn/archive/2013/03/28/2987653.html
\usepackage{multicol}
\begin{multicols}{2}
\end{multicols}
转载于:https://www.cnblogs.com/sunleecn/archive/2013/03/28/2987653.html