案例1

\documentclass{article}

\usepackage{xeCJK}
\usepackage[]{algorithm2e}
%\usepackage{ctex}                                         % 中文包

\begin{document}

\renewcommand{\algorithmcfname}{算法}                     % 把标题设置为“算法”
\begin{algorithm}
  
  \SetKwInOut{Input}{输入}
  \SetKwInOut{Output}{输出}

  \Input{Some input data\;these inputs can be displayed on several lines and one input can be wider than line's width.}
  \Output{Same for output data}
  
\caption{How to write algorithms}
\end{algorithm}

\end{document}

结果如下