0.说明
本文使用的LATEX排版工具为CTEX套件，具体可参看上一篇博文。
1.排版实练
1）换行
每行最后加“\\”可进行换行，也可以使用\newline指令。\\换行还可以进行行距控制。
this is a line \\[1cm] this is a new line
上述内容表示在原来行间距上加上1cm，值可以是负数，表示减去对应的行间距。不使用换行控制，即使进行回车(enter)也不会进行换行。
2）文档类别
先主要介绍“article”与“report"，article没有章（chapter）,可以用作短文或者小论文，report则是报告或者大论文。
文档结构主要有chapter/section/subsection/等。
3）简单示例
这里为了能对结果pdf进行很好的截图，使用article文档类别，report文档每个chapter会自动分页。test.tex文件内容如下：
1 \documentclass{article}
2 \begin{document}
3 This is the first experience of \LaTeX.
4 \section{Aesop Fables}
5 \subsection{The Ant and the Dove}
6 An ant went to the bank of a river to quench its thirst, and
7 being carried away by the rush of the stream, was on the
8 point of drowning.
9 A Dove sitting on a tree overhanging the water plucked a
10 leaf and let it fall into the stream close to her. The Ant
11 climbed onto it and floated in safety to the bank.
12 \subsection{The Dog in the Manger}
13 A dog lay in a manger, and by his growling and snapping
14 prevented the oxen from eating the hay which had been
15 placed for them.
16 ‘‘What a selfish Dog!’’ said one of them to his companions;
17 ‘‘he cannot eat the hay himself, and yet refuses to allow
18 those to eat who can.’’
19 \section{The Eagle and the Arrow}
20 An eagle sat on a lofty rock, watching the movements of a
21 Hare whom he sought to make his prey.
22 An archer, who saw the Eagle from a place of concealment,
23 took an accurate aim and wounded him mortally.
24 \end{document}
上述代码编译产生的pdf效果如下图：
解释：第3行被当做引言，从而被自动缩进了。section后为节，subsection后为小结，节和小节被自动使用了响应的格式进行了加粗等设置。
4）加入标题(title)等信息
将test.tex的1-3行改为：
\documentclass{article}
\title{Aesop Fables}
\author{Aesop\thanks{Thanks to the reader.}
\and Nobody\thanks{Thanks to nobody.}}
\date{\today}
\begin{document}
\maketitle
This is the first experience of \LaTeX.
编译的pdf结果如下：
解释：\title指令添加文章标题，\author加入作者名字，\thanks添加致谢，多位作者用\and 进行连接。\date加入日期，title的插入式在preamble区，并且需要在文本区(\begin{document}后)加入\maketitle指令来生成title信息。
5）加入目录
目录的插入非常简单，在上述基础上，在\maketitle指令后加入一行：
\tableofcontents
LATEX会自动根据章节（chapter）/节（section）/小节（subsection）等内容插入目录，此时需要编译两次，一次用于生成toc文件（table of contents），第二次根据toc真正的编入目录。
本文示例加入目录后，结果如下图：
6）摘要
article/report文档类别可以有摘要，可以在\maketitle和\tableofcontents之间插入摘要，如下：
\begin{abstract}
The tale, the Parable, and the Fable are all common and popular
modes of conveying instruction. Each is distinguished by its own
special characteristics.
\end{abstract}
摘要使用\begin{abstract} \end{abstract}进行标记，摘要会自动进行左右缩排，排版结果如下图：
7）脚注与边注
可以使用\footnote{}加入脚注\marginpar{}加入边注，脚注和边注的内容写在{}内。
修改第一小节内容如下：
An ant\footnote{mayi in chinese} went to the bank of a river to quench its thirst, and being carried away by the rush of the stream, was on the point of drowning.
A Dove\marginpar{Pigeon} sitting on a tree overhanging the water plucked a leaf and let it fall into the stream close to her. The Ant climbed onto it and floated in safety to the bank.
编译后排版结果如下图：
to be coutinued...