简单用用吧，为了完成作业，具体用法可自行搜索
推荐LaTeX在线编辑器：
https://cn.overleaf.com/
API参考手册：
http://www.personal.ceu.hu/tex/latex.htm
标题：\title{标题}
作者：\author{作者}
学号：\studentid{123}
正文：
\begin{document}
...内容...
\end{document}
制作首页：\maketitle；如果没有这个，你的author之类的信息是不会显示的
中文支持：
\usepackage{ctex} % 导入中文宏
摘要部分
中文摘要和关键词：
\begin{abstract} %摘要部分
\small\centering这是一篇关于勾股定理的小论文。%\small 是使用缩小字体，\centering是使内容居中
\par\textbf{Keywords:} keyword1, keyword2, keyword3
\end{abstract}
英文摘要和关键词：
% 由于此时是中文环境，需要定义一个新的英文摘要
\newcommand{\enabstractname}{Abstract}
\newenvironment{enabstract}{%
\par\small
\noindent\mbox{}\hfill{\bfseries \enabstractname}\hfill\mbox{}\par
\vskip 2.5ex}{\par\vskip 2.5ex}
\begin{enabstract}
This is the abstract in English.
\centering
\textbf{Keywords:} Abstract, \LaTeXe, English
\end{enabstract}
自动目录：
\tableofcontents %表示目录部分开始
\section{勾股定理在古代} %目录的前缀页面都会自动排版不需要手动排版
\section{勾股定理的近代形式}
\addcontentsline{toc}{section}{参考文献} %用来添加文献的标准方式
\section{附录} %要写的附录
加粗：\textbf{文字}
斜体：\emph{文字}
下划线：\underline{文字}
不缩进：\noindent
段落结束换行：\par
空白行：{\par\vskip 2.5ex}
图片设置英文题注：
\begin{figure}[h!]
\centering
\includegraphics[scale=0.5]{img/Communication Model}
\renewcommand{\figurename}{Fig} % 设置英文题注
\caption{Communication Model}
\label{fig:Communication Model}
\end{figure}
表格设置英文题注：
% 主要也是这两句
\renewcommand{\tablename}{Tab}
\caption{English title}
表格：
\begin{table}[htbp]
\centering
\begin{tabular}{|c|c|c|c|}
\hline
& \multicolumn{3}{|c|}{Overall classification results (\%)} \\
\hline
Descriptors & KTH & UCF sports & TV human interaction \\
\hline
Trajectory & 91.67 & 74.64 & 46.43 \\
HOG & 86.11 & 69.88 & 44.52 \\
MBH & 96.3 & 72.74 & 45.88 \\
\hline
\hline
Combined & 96.3 & 81.07 & 55.4 \\
\hline
\end{tabular}%
\caption{An example table}
\label{t1}%
\end{table}%
引用：内容内容\cite{ref1}、内容内容\citep{ref1}
设置引用右上标：
% 添加：
\newcommand\myciteup[1]{
{\setcitestyle{square,super}\cite{#1}}} % 使引用为上标
%使用时：
123456 \myciteup{ref1}
参考文献：
I always thought something was fundamentally wrong with the universe \citep{ref1}
\bibliographystyle{plain}
\bibliography{ref/references}
% 文献具体内容在 ref/references.bib 中，内容格式（BibTeX）如下：
@book{ref1,
title={The Hitchhiker's Guide to the Galaxy},
author={Adams, D.},
isbn={9781417642595},
url={http://books.google.com/books?id=W-xMPgAACAAJ},
year={1995},
publisher={San Val}
}
章：\chapter{名称}
小节：\section{名称}
亚节：\subsection{名称}
三级标题：\subsubsection{三级标题}
另起一页：\newpage
插入图片：
\begin{figure}[h!]
\centering
\includegraphics[scale=1.7]{img/universe} % 图片文件img/universe.jpg
\caption{The Universe}
\label{fig:universe}
\end{figure}
标签：\label{名称a}，常与\ref{名称a}同用
伪代码：
先导入包：\usepackage[lined,boxed,commentsnumbered]{algorithm2e}
再添加代码：
\begin{algorithm}[H]
\KwData{this text}
\KwResult{how to write algorithm with \LaTeX2e }
initialization\;
\While{not at end of this document}{
read current\;
\eIf{understand}{
go to next section\;
current section becomes this one\;
}{
go back to the beginning of current section\;
}
}
\caption{How to write algorithms 1}
\end{algorithm}
导入其他tex：\input{a.tex}
目录：\makecontents
各种列表：\listtables、\listfigures、\listalgorithms
设置页码：
\pagenumbering{arabic} % 阿拉伯数字
\setcounter{page}{1} % 数字1
简单公式：
行内公式：
$ c = \sqrt{a^{2}+b_{0}^{2}+e^{x}} $
行间公式：
$$ c = \sqrt{a^{2}+b_{0}^{2} +e^{x}} $$
常用数学公式代码：
xfxuezhang.cn/index.php/archives/121
复杂公式并编号：
\begin{equation}
\mathbf{X} = \left(\begin{array}{ccc}
x_{11} & x_{12} & \ldots \\
x_{21} & x_{22} & \ldots \\
\vdots & \vdots & \ddots \end{array} \right)
\end{equation}
换行：\\
空格：\
完整测试实例（仅供参考啊，实际有很多配置的）：
% !TEX TS-program = pdflatex
% !TEX encoding = UTF-8 Unicode
\documentclass[11pt]{article} % use larger type; default would be 10pt
%\documentclass[master,twoside]{article}
\usepackage[utf8]{inputenc} % set input encoding (not needed with XeLaTeX)
%%% PAGE DIMENSIONS
\usepackage{geometry} % to change the page dimensions
\geometry{a4paper} % or letterpaper (US) or a5paper or....
% \geometry{margin=2in} % for example, change the margins to 2 inches all round
% \geometry{landscape} % set up the page for landscape
% read geometry.pdf for detailed page layout information
% 导入中文宏 eabstract
\usepackage{ctex}
\usepackage{graphicx} % support the \includegraphics command and options
\usepackage{natbib}
% \usepackage[parfill]{parskip} % Activate to begin paragraphs with an empty line rather than an indent
% 算法以及列表环境
\RequirePackage{cases,listings}
\RequirePackage{fancyvrb}
\RequirePackage{algorithmic}
%%% PACKAGES
\usepackage[lined,boxed,commentsnumbered]{algorithm2e}
\usepackage{booktabs} % for much better looking tables
\usepackage{array} % for better arrays (eg matrices) in maths
\usepackage{paralist} % very flexible & customisable lists (eg. enumerate/itemize, etc.)
\usepackage{verbatim} % adds environment for commenting out blocks of text & for better verbatim
\usepackage{subfig} % make it possible to include more than one captioned figure/table in a single float
% These packages are all incorporated in the memoir class to one degree or another...
%%% HEADERS & FOOTERS
\usepackage{fancyhdr} % This should be set AFTER setting up the page geometry
\pagestyle{fancy} % options: empty , plain , fancy
\renewcommand{\headrulewidth}{0pt} % customise the layout...
\lhead{}\chead{}\rhead{}
\lfoot{}\cfoot{\thepage}\rfoot{}
%%% SECTION TITLE APPEARANCE
\usepackage{sectsty}
\allsectionsfont{\sffamily\mdseries\upshape} % (See the fntguide.pdf for font help)
% (This matches ConTeXt defaults)
%%% ToC (table of contents) APPEARANCE
\usepackage[nottoc,notlof,notlot]{tocbibind} % Put the bibliography in the ToC
\usepackage[titles,subfigure]{tocloft} % Alter the style of the Table of Contents
\renewcommand{\cftsecfont}{\rmfamily\mdseries\upshape}
\renewcommand{\cftsecpagefont}{\rmfamily\mdseries\upshape} % No bold!
%%% END Article customizations
%%% The "real" document content comes below...
\title{Freshness optimization of dense relay cache network data based on edge computing}
\author{The Author}
\begin{document}
\maketitle
\begin{abstract} %摘要部分
\small\centering这是一篇关于勾股定理的小论文。%\small 是使用缩小字体，\centering是使内容居中
\par\textbf{Keywords:} keyword1, keyword2, keyword3
\end{abstract}
% 由于此时是中文环境，需要定义一个新的英文摘要
\newcommand{\enabstractname}{Abstract}
\newenvironment{enabstract}{%
\par\small
\noindent\mbox{}\hfill{\bfseries \enabstractname}\hfill\mbox{}\par
\vskip 2.5ex}{\par\vskip 2.5ex}
\begin{enabstract}
This is the abstract in English.
\centering
\textbf{Keywords:} Abstract, \LaTeXe, English
\end{enabstract}
\tableofcontents %表示目录部分开始
\section{勾股定理在古代} %目录的前缀页面都会自动排版不需要手动排版
\section{勾股定理的近代形式}
\addcontentsline{toc}{section}{参考文献} %用来添加文献的标准方式
\section{附录} %要写的附录
\section{First section}
Your text goes here.
\subsection{A subsection}
\subsubsection{三级标题}
More text.
\begin{figure}[h!]
\centering
\includegraphics[scale=1.7]{img/universe}
\caption{The Universe}
\label{fig:universe}
\end{figure}
\begin{algorithm}[H]
\KwData{this text}
\KwResult{how to write algorithm with \LaTeX2e }
initialization\;
\While{not at end of this document}{
read current\;
\eIf{understand}{
go to next section\;
current section becomes this one\;
}{
go back to the beginning of current section\;
}
}
\caption{How to write algorithms 1}
\end{algorithm}
\section{Conclusion}
``I always thought something was fundamentally wrong with the universe'' \citep{ref1}
$ c = \sqrt{a^{2}+b_{0}^{2}+e^{x}} (1)$
$$ c = \sqrt{a^{2}+b_{0}^{2} +e^{x}} $$
\begin{equation}
\mathbf{X} = \left(\begin{array}{ccc}
x_{11} & x_{12} & \ldots \\
x_{21} & x_{22} & \ldots \\
\vdots & \vdots & \ddots \end{array} \right)
\end{equation}
\renewcommand\bibname{Reference}
\bibliographystyle{plain}
\bibliography{ref/references}
\end{document}