latex编写伪代码

使用algorithmicx包

egin{algorithm}
  caption{Sum of integers from 1 to n.}
    egin{algorithmic}[1]
      Procedure {Sum}{$n$}
        State $sum gets 0  hfill 	riangleright {
m  Initialization}$
        For{$i gets 1,n$}
          State $sum gets sum + i$        
        EndFor
        State Return{$sum$} $ hfill 	riangleright {
m  Return}$
      EndProcedure
    end{algorithmic}
end{algorithm}

结果如下：