Latex写伪代码

亲测有效

1、导入依赖包:
\usepackage[ruled]{algorithm2e}

\begin{algorithm}[]  %其中这里面不能有H不然会报错,不过不影响结果
	\caption{algorithm caption}%算法名字
	\LinesNumbered %要求显示行号
	\KwIn{input parameters A, B, C}%输入参数
	\KwOut{output result}%输出
	some description\; %\;用于换行
	\For{condition}{
		only if\;
		\If{condition}{
			1\;
		}
	}
	\While{not at end of this document}{
		if and else\;
		\eIf{condition}{
			1\;
		}{
			2\;
		}
	}
	\ForEach{condition}{
		\If{condition}{
			1\;
		}
	}
\end{algorithm}

Latex写伪代码_第1张图片

2、导入依赖包:
\usepackage[noend]{algpseudocode}
\usepackage{algorithmicx,algorithm}
\begin{algorithm}[t]
\caption{algorithm caption} %算法的名字
\hspace*{0.02in} {\bf Input:} %算法的输入, \hspace*{0.02in}用来控制位置,同时利用 \\ 进行换行
input parameters A, B, C\\
\hspace*{0.02in} {\bf Output:} %算法的结果输出
output result
\begin{algorithmic}[1]
\State some description % \State 后写一般语句
\For{condition} % For 语句,需要和EndFor对应
  \State ...
  \If{condition} % If 语句,需要和EndIf对应
    \State ...
  \Else
    \State ...
  \EndIf
\EndFor
\While{condition} % While语句,需要和EndWhile对应
  \State ...
\EndWhile
\State \Return result
\end{algorithmic}
\end{algorithm}

Latex写伪代码_第2张图片

3、导入依赖包:
%\usepackage{algorithm}
%\usepackage{algorithmicx}
%\usepackage{algpseudocode}  % 如果不想在算法伪代码模块中显示 end for 和 end while,则使用  %\usepackage[noend]{algpseudocode}
\begin{algorithm}[h] 
	\renewcommand{\algorithmicrequire}{\textbf{Input:}}
	\renewcommand{\algorithmicensure}{\textbf{Output:}}
	\caption{Environmental Selection} 
	\label{alg::conjugateGradient} 
	\begin{algorithmic}[1] 
		\Require 
		The population $ P_t $,the probabity for crossover operation
		$ p_c $, the probability for mutation operation $ p_m $,
		the mutation operation list $ l_m $,the probabilities
		of selecting different mutation operations $ p_l $.  
		\Ensure 
		The offspring population $ Q_t $;
		\State $ Q_t $ ← $\phi$;
		\Repeat 
		\State $ p_1 $ ← Randomly select two individuals from $ P_t $,
		and from the two then select the one with the better fitness;
		\State $ p_2 $ ← Repeat Line 4;
		\Repeat
		\State Repeat Line 5;
		\Until{($ p_1 $ == $ p_2 $)}
		%\whiledo{$ p_1 $ == $ p_2 $}{\State Repeat Line 5;} 
		\State $ r $ ← Randomly generate a number from (0,1);  
		\Until{($\lvert Q_t \rvert < \lvert P_t \rvert$)}
		\State Return the individual having the best fitness in $P_t$;
	\end{algorithmic} 
\end{algorithm}

Latex写伪代码_第3张图片

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