latex之插入伪代码 [转]

1 \begin{codebox}
2 \Procname{$\proc{Insertion-Sort(A)}$}
3 \li \For $j \gets 2$ \To $\id{length}[A]$    \label{li:for}
4 \li     \Do $\id{key} \gets A[j]$            \label{li:for-begin}
5 \li         \Comment Insert $A[j]$ into the sorted sequence $A[1 \twodots j-1]$.
6 \li         $i \gets j-1$
7 \li         \While $i>0$ and $A[i]>\id{key}$ \label{li:while}
8 \li            \Do $A[i+1] \gets A[i]$       \label{li:while-begin}
9 \li                $i \gets i-1$             \label{li:while-end}
10 \End
11 \li         $A[i+1] \gets \id{key}$          \label{li:for-end}
12 \End
13 \end{codebox}

1 \begin{algorithmic}
2 \REQUIRE $n \geq 0$
3 \ENSURE $y = x^n$
4 \STATE $y \Leftarrow 1$
5 \STATE $X \Leftarrow x$
6 \STATE $N \Leftarrow n$
7 \WHILE{$N \neq 0$}
8 \IF{$N$ iseven}
9 \STATE $X \Leftarrow X \times X$
10 \STATE $N \Leftarrow N / 2$
11 \ELSE[$N$ isodd]
12 \STATE $y \Leftarrow y \times X$
13 \STATE $N \Leftarrow N - 1$
14 \ENDIF
15 \ENDWHILE
16 \end{algorithmic}

1 \ usepackage { algorithm } 
2 \ usepackage { algorithmic } 
3 
4 
5 
6 \begin { algorithm } 
7 \ caption { Calculate$y = x^n$ } 
8 \begin { algorithmic } 
9 \REQUIRE $n\geq 0\vee x\neq 0$ 
10 \ENSURE $y = x^n$ 
11 \STATE $y\leftarrow 1$ 
12 \IF { $n < 0$ } 
13 \STATE $X\leftarrow 1 /x$ 
14 \STATE $N\leftarrow -n$ 
15 \ELSE 
16 \STATE $X\leftarrow x$ 
17 \STATE $N\leftarrow n$ 
18 \ENDIF 
19 \WHILE { $N\neq 0$ } 
20 \IF { $N$ iseven } 
21 \STATE $X\leftarrow X\times X$ 
22 \STATE $N\leftarrow N / 2$ 
23 \ELSE [ $N$ isodd ] 
24 \STATE $y\leftarrow y\times X$ 
25 \STATE $N\leftarrow N - 1$ 
26 \ENDIF 
27 \ENDWHILE 
28 \end { algorithmic } 
29 \end { algorithm } Upload