参考：

Algorithm tag and page break

Latex 算法过长 分页显示方法

1.引用algorithm包；

2.在\begin{document}前加上以下Latex代码：

\makeatletter

\newenvironment{breakablealgorithm}

  {% \begin{breakablealgorithm}

   \begin{center}

     \refstepcounter{algorithm}% New algorithm

     \hrule height.8pt depth0pt \kern2pt% \@fs@pre for \@fs@ruled

     \renewcommand{\caption}[2][\relax]{% Make a new \caption

       {\raggedright\textbf{\ALG@name~\thealgorithm} ##2\par}%

       \ifx\relax##1\relax % #1 is \relax

         \addcontentsline{loa}{algorithm}{\protect\numberline{\thealgorithm}##2}%

       \else % #1 is not \relax

         \addcontentsline{loa}{algorithm}{\protect\numberline{\thealgorithm}##1}%

       \fi

       \kern2pt\hrule\kern2pt

     }

  }{% \end{breakablealgorithm}

     \kern2pt\hrule\relax% \@fs@post for \@fs@ruled

   \end{center}

  }

\makeatother

3.使用\begin{breakablealgorithm}和\end{breakablealgorithm}替换\begin{algorithm}和\end{algorithm}.

2017.12