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处理目录溢出的问题，fix #7

.gitignore

@@ -0,0 +1,242 @@
+## Core latex/pdflatex auxiliary files:
+*.aux
+*.lof
+*.log
+*.lot
+*.fls
+*.out
+*.toc
+*.fmt
+*.fot
+*.cb
+*.cb2
+.*.lb
+
+## Intermediate documents:
+*.dvi
+*.xdv
+*-converted-to.*
+# these rules might exclude image files for figures etc.
+# *.ps
+# *.eps
+# *.pdf
+
+## Generated if empty string is given at "Please type another file name for output:"
+.pdf
+
+## Bibliography auxiliary files (bibtex/biblatex/biber):
+*.bbl
+*.bcf
+*.blg
+*-blx.aux
+*-blx.bib
+*.run.xml
+
+## Build tool auxiliary files:
+*.fdb_latexmk
+*.synctex
+*.synctex(busy)
+*.synctex.gz
+*.synctex.gz(busy)
+*.pdfsync
+
+## Auxiliary and intermediate files from other packages:
+# algorithms
+*.alg
+*.loa
+
+# achemso
+acs-*.bib
+
+# amsthm
+*.thm
+
+# beamer
+*.nav
+*.pre
+*.snm
+*.vrb
+
+# changes
+*.soc
+
+# cprotect
+*.cpt
+
+# elsarticle (documentclass of Elsevier journals)
+*.spl
+
+# endnotes
+*.ent
+
+# fixme
+*.lox
+
+# feynmf/feynmp
+*.mf
+*.mp
+*.t[1-9]
+*.t[1-9][0-9]
+*.tfm
+
+#(r)(e)ledmac/(r)(e)ledpar
+*.end
+*.?end
+*.[1-9]
+*.[1-9][0-9]
+*.[1-9][0-9][0-9]
+*.[1-9]R
+*.[1-9][0-9]R
+*.[1-9][0-9][0-9]R
+*.eledsec[1-9]
+*.eledsec[1-9]R
+*.eledsec[1-9][0-9]
+*.eledsec[1-9][0-9]R
+*.eledsec[1-9][0-9][0-9]
+*.eledsec[1-9][0-9][0-9]R
+
+# glossaries
+*.acn
+*.acr
+*.glg
+*.glo
+*.gls
+*.glsdefs
+
+# gnuplottex
+*-gnuplottex-*
+
+# gregoriotex
+*.gaux
+*.gtex
+
+# htlatex
+*.4ct
+*.4tc
+*.idv
+*.lg
+*.trc
+*.xref
+
+# hyperref
+*.brf
+
+# knitr
+*-concordance.tex
+# TODO Comment the next line if you want to keep your tikz graphics files
+*.tikz
+*-tikzDictionary
+
+# listings
+*.lol
+
+# makeidx
+*.idx
+*.ilg
+*.ind
+*.ist
+
+# minitoc
+*.maf
+*.mlf
+*.mlt
+*.mtc[0-9]*
+*.slf[0-9]*
+*.slt[0-9]*
+*.stc[0-9]*
+
+# minted
+_minted*
+*.pyg
+
+# morewrites
+*.mw
+
+# nomencl
+*.nlg
+*.nlo
+*.nls
+
+# pax
+*.pax
+
+# pdfpcnotes
+*.pdfpc
+
+# sagetex
+*.sagetex.sage
+*.sagetex.py
+*.sagetex.scmd
+
+# scrwfile
+*.wrt
+
+# sympy
+*.sout
+*.sympy
+sympy-plots-for-*.tex/
+
+# pdfcomment
+*.upa
+*.upb
+
+# pythontex
+*.pytxcode
+pythontex-files-*/
+
+# thmtools
+*.loe
+
+# TikZ & PGF
+*.dpth
+*.md5
+*.auxlock
+
+# todonotes
+*.tdo
+
+# easy-todo
+*.lod
+
+# xmpincl
+*.xmpi
+
+# xindy
+*.xdy
+
+# xypic precompiled matrices
+*.xyc
+
+# endfloat
+*.ttt
+*.fff
+
+# Latexian
+TSWLatexianTemp*
+
+## Editors:
+# WinEdt
+*.bak
+*.sav
+
+# Texpad
+.texpadtmp
+
+# Kile
+*.backup
+
+# KBibTeX
+*~[0-9]*
+
+# auto folder when using emacs and auctex
+./auto/*
+*.el
+
+# expex forward references with \gathertags
+*-tags.tex
+
+# standalone packages
+*.sta
+
+# generated if using elsarticle.cls
+*.spl

License

@@ -0,0 +1,416 @@
+The LaTeX Project Public License
+=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+
+LPPL Version 1.3c  2008-05-04
+
+Copyright 1999 2002-2008 LaTeX3 Project
+    Everyone is allowed to distribute verbatim copies of this
+    license document, but modification of it is not allowed.
+
+
+PREAMBLE
+========
+
+The LaTeX Project Public License (LPPL) is the primary license under
+which the LaTeX kernel and the base LaTeX packages are distributed.
+
+You may use this license for any work of which you hold the copyright
+and which you wish to distribute.  This license may be particularly
+suitable if your work is TeX-related (such as a LaTeX package), but 
+it is written in such a way that you can use it even if your work is 
+unrelated to TeX.
+
+The section `WHETHER AND HOW TO DISTRIBUTE WORKS UNDER THIS LICENSE',
+below, gives instructions, examples, and recommendations for authors
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+ 4.  If you make an `intention announcement' as described in 2b. above
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+     people, then you may arrange for the Work to be changed so as
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+     
+ 5.  If the previously unreachable Current Maintainer becomes
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+WHETHER AND HOW TO DISTRIBUTE WORKS UNDER THIS LICENSE
+======================================================
+
+This section contains important instructions, examples, and
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+Choosing This License or Another License
+----------------------------------------
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+-----------------------------------------------------
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+How to Use This License
+-----------------------
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+Here is an example of such a notice and statement:
+
+  %% pig.dtx
+  %% Copyright 2005 M. Y. Name
+  %
+  % This work may be distributed and/or modified under the
+  % conditions of the LaTeX Project Public License, either version 1.3
+  % of this license or (at your option) any later version.
+  % The latest version of this license is in
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+  % and version 1.3 or later is part of all distributions of LaTeX
+  % version 2005/12/01 or later.
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+Derived Works That Are Not Replacements
+---------------------------------------
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+
+
+Important Recommendations
+-------------------------
+
+ Defining What Constitutes the Work
+
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+   
+   in that place.  In the absence of an unequivocal list it might be
+   impossible for the licensee to determine what is considered by you
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+   entitled to make reasonable conjectures as to which files comprise
+   the Work.
+

README.md

@@ -0,0 +1,23 @@
+<!-- Author : Dongsheng Deng & Liam Huang-->
+<!-- Program Email: elegantlatex2e@gmail.com -->
+
+# ElegantBook
+
+[Homepage](https://elegantlatex.org/) | [Github](https://github.com/ElegantLaTeX/ElegantBook) | [CTAN](https://ctan.org/pkg/elegantbook) | [Download](https://github.com/ElegantLaTeX/ElegantBook/releases) | [Wiki](https://github.com/ElegantLaTeX/ElegantBook/wiki) | [Weibo](https://weibo.com/elegantlatex)
+
+![License](https://img.shields.io/ctan/l/elegantbook.svg)
+![CTAN Version](https://img.shields.io/ctan/v/elegantbook.svg)
+![Github Version](https://img.shields.io/github/release/ElegantLaTeX/ElegantBook.svg)
+![Repo Size](https://img.shields.io/github/repo-size/ElegantLaTeX/ElegantBook.svg)
+
+ElegantBook is designed for books. Just enjoy it! If you have any questions, suggestions or bug reports, you can create issues, pull requests or contact us at elegantlatex2e@gmail.com.
+
+如果你有其他问题、建议或者报告 bug，可以提交 issues 或者给我们发邮件：elegantlatex2e@gmail.com。
+
+**注意：** 由于新版本进行了重构，3.x 版本并不兼容 2.x 版本，如果你想把 2.x 版本的文件转为 3.x 版本，请查看[跨版本转换](https://github.com/ElegantLaTeX/ElegantBook/wiki/%E8%BD%AC%E6%8D%A2)。
+
+# License
+
+This work is released under the LaTeX Project Public License, v1.3c or later. 
+
+本模板发布遵循 LaTeX 项目公共许可证 1.3 c 或更高版本。

base.tex

@@ -1,34 +0,0 @@
-
-%% tikz setting
-\tikzset{x=1pt,y=1pt}
-\tikzset{elegant/.style={fill=main,draw=main},
-             null/.style={fill=white,draw=none}}
-             
-%% the triangle shape
-\newcommand{\triz}[2]{
-\begin{scope}[xshift=#1,rotate=#2]
-  \draw[elegant] (0,0) -- (105,6) .. controls (119,21) and (132,13) .. (135,12) .. controls (124,15) and (110,8) .. (107,-12) -- cycle;
-  \draw[null] (40,-0.5) -- (101,-4) -- (103,1)--cycle;
-\end{scope}
-}
-
-%% the ellipse shape +127
-\newcommand{\ellz}[1]{
-\begin{scope}[xshift=#1,yshift=3]
-\draw[elegant,rotate around={60:(0,-3)}](0,-3) ellipse (10.5 and 8.5);
-\draw[null](-3,-10) .. controls (-10,-6)  and (-2,6) .. (4.5,4) .. controls (0,3) and  (-4,-6) .. (-3,-10)--cycle;
-\end{scope}
-}
-
-%% the integration shape+147
-\newcommand{\intz}[1]{
-\begin{scope}[xshift=#1,yshift=2]
-\draw[elegant,draw=none,very thin] (-31,-14.5) .. controls (-17,-21)  and (-9,-8) .. (-3,0) .. controls (10,19) and (22,17) .. (29,9) .. controls (21,13) and (13,13) .. (3,-1) .. controls (-4,-11) and (-18,-27) .. (-31,-14.5) -- cycle ;
-\end{scope}
-}
-
-
-
-
-
-

delete-temp-files.bat

@@ -0,0 +1,5 @@
+@echo off
+del /q *.aux *.bbl *.blg *.log *.out *.toc *.bcf *.xml *.synctex *.nlo *.nls *.bak *.ind *.idx *.ilg *.lof *.lot *.ent-x *.tmp *.ltx *.los *.lol *.loc *.listing *.gz *.userbak *.nav *.snm *.vrb *.synctex(busy)
+
+
+del /q *.nav *.snm *.vrb *.fls *.xdv *.fdb_latexmk

elegantbook-cn.tex

@@ -0,0 +1,422 @@
+\documentclass[cn,fancy,blue,11pt]{elegantbook}
+
+
+\title{ElegantBook：优美的 \LaTeX{} 书籍模板}
+\subtitle{Elegant\LaTeX{} 经典之作}
+
+\author{Ethan Deng \& Liam Huang}
+\institute{Elegant\LaTeX{} Program}
+\date{\today}
+\version{3.07}
+
+\equote{Victory won\rq t come to us unless we go to it. --- M. Moore}
+
+\logo{logo.png}
+\cover{cover.jpg}
+
+\usepackage[authoryear]{gbt7714}
+
+\begin{document}
+\maketitle
+\tableofcontents
+
+% \thispagestyle{empty}
+
+\mainmatter
+\hypersetup{pageanchor=true}
+
+\chapter{Elegant\LaTeX{} 系列模板介绍}
+Elegant\LaTeX{} 项目组致力于打造一系列美观、优雅、简便的模板方便用户使用。Elegant\LaTeX{} 系列模板目前由 \href{https://github.com/ElegantLaTeX/ElegantNote}{ElegantNote}，\href{https://github.com/ElegantLaTeX/ElegantBook}{ElegantBook}，\href{https://github.com/ElegantLaTeX/ElegantPaper}{ElegantPaper} 组成，分别用于排版笔记，书籍和工作论文。如果你在使用本模板，推荐最新版本！最新正式版下载地址：\href{https://github.com/ElegantLaTeX/ElegantBook/releases}{Github}。本文将介绍本模板的一些设置内容以及基本使用方法。如果您有其他问题，建议或者意见，欢迎在 Github 上给我们提交 \href{https://github.com/ElegantLaTeX/ElegantBook/issues}{issues} 或者邮件\footnote{\email{elegantlatex2e@gmail.com}.}联系我们。
+
+
+
+\section{ElegantBook 更新说明}
+在这几年间，我们收到了很多用户的反馈，主要的问题涉及到字体安装，编码支持，定理浮动，定理跨页，交叉引用等等。我们思前想后，原先让用户安装字体以追求视觉上的美观并不完美，用户陷入了巨大的麻烦，这违背了我们的模板初衷。因此我们在新版中删除了这部分，用户无需安装任何字体。ElegantBook 3.x 版本更新的主要内容有：
+
+\begin{enumerate}
+   \item 删除了自定义字体设置，改用 \lstinline{ctex} 宏包支持中文；
+   \item 模板拆分为中英文模式（\lstinline{lang=cn/en}）；
+   \item 支持 \lstinline{PDFLaTeX} 与 \lstinline{XeLaTeX}；
+   \item 使用 \lstinline{tcolorbox} 宏包改写定理类环境，可跨页；
+   \item 定理类环境名字更新，修复定理环境交叉引用；
+   \item 更新颜色主题，增加灰色和黑色主题；
+   \item 颜色名字更新，统一链接颜色；
+   \item 重新绘制 Elegant\LaTeX{} 的 Logo；
+   \item 更新封面与装饰物，删除水印；
+   \item 修正附录相关内容；
+   \item 增加代码高亮；
+   \item 美化列表环境；
+   \item 增加简化模式；
+   \item 增加 base 隐藏选项。
+\end{enumerate}
+
+\begin{note}
+由于新版本进行了重构，3.x 版本并不兼容 2.x 版本，如果你想把 2.x 版本的文件转为 3.x 版本，请查看\href{https://github.com/ElegantLaTeX/ElegantBook/wiki/convert}{跨版本转换}。今后不再回答关于 2.x 版本的问题。
+\end{note}
+
+\chapter{ElegantBook 设置说明}
+
+\section{编译方式}
+
+本模板基于基础的 book 文类，所以 book 的选项对于本模板也是有效的。默认编码为 UTF-8，推荐使用 \TeX{} Live 编译。本文编写环境为 Win10 (64bit) + \TeX{} Live 2018，支持 \lstinline{PDFLaTeX} 以及 \lstinline{XeLaTeX} 编译。
+
+
+\section{语言模式}
+本模板内含两套语言环境，改变语言环境会改变图表标题的引导词（图，表），文章结构词（比如目录，参考文献等），以及定理环境中的引导词（比如定理，引理等）。不同语言模式的启用如下：
+\begin{lstlisting}
+\documentclass[cn]{elegantbook} 
+\documentclass[lang=cn]{elegantbook}
+\end{lstlisting}
+
+\begin{remark}
+不管选用中文环境（\lstinline{lang=cn}）还是英文环境（\lstinline{lang=en}）均可输入中文。另外如果在笔记中使用了抄录环境（\lstinline{lstlisting}），并抄录代码中有中文，请务必使用 \lstinline{XeLaTeX} 编译。
+\end{remark}
+
+
+\section{颜色主题}
+本模板内置 5 组颜色主题，分别为 \textcolor{main1}{\lstinline{green}}\footnote{为原先默认主题}、\textcolor{main2}{\lstinline{cyan}}、\textcolor{main3}{\lstinline{blue}}（默认）、\textcolor{main4}{\lstinline{gray}}、\textcolor{main5}{\lstinline{black}}。另外还有一个自定义的选项  \lstinline{nocolor}。调用颜色主题 \lstinline{green} 的方法为 
+\begin{lstlisting}
+\documentclass[green]{elegantbook} %or
+\documentclass[color=green]{elegantbook}
+\end{lstlisting}
+
+\begin{table}[htbp]
+\caption{ElegantBook 模板中的颜色主题\label{tab:color thm}}
+\centering
+\begin{tabular}{ccccccc}
+\toprule
+	        & \textcolor{main1}{green} 
+	        & \textcolor{main2}{cyan} 
+	        & \textcolor{main3}{blue}
+	        & \textcolor{main4}{gray} 
+	        & \textcolor{main5}{black} 
+	        & 主要使用的环境\\
+\midrule
+structure & \makecell{{\color{structure1}\rule{1cm}{1cm}}}
+				& \makecell{{\color{structure2}\rule{1cm}{1cm}}}
+				& \makecell{{\color{structure3}\rule{1cm}{1cm}}} 
+				& \makecell{{\color{structure4}\rule{1cm}{1cm}}} 
+				& \makecell{{\color{structure5}\rule{1cm}{1cm}}} 
+				& chapter \ section \ subsection \\
+
+main      & \makecell{{\color{main1}\rule{1cm}{1cm}}}
+				& \makecell{{\color{main2}\rule{1cm}{1cm}}}
+				& \makecell{{\color{main3}\rule{1cm}{1cm}}}
+				& \makecell{{\color{main4}\rule{1cm}{1cm}}}
+				& \makecell{{\color{main5}\rule{1cm}{1cm}}}
+				& definition \ exercise \ problem \ solution \\
+
+second    & \makecell{{\color{second1}\rule{1cm}{1cm}}}
+				& \makecell{{\color{second2}\rule{1cm}{1cm}}}
+				& \makecell{{\color{second3}\rule{1cm}{1cm}}}
+				& \makecell{{\color{second4}\rule{1cm}{1cm}}}
+				& \makecell{{\color{second5}\rule{1cm}{1cm}}}
+				& theorem \ lemma \ corollary\\
+
+third     & \makecell{{\color{third1}\rule{1cm}{1cm}}}
+				& \makecell{{\color{third2}\rule{1cm}{1cm}}}
+				& \makecell{{\color{third3}\rule{1cm}{1cm}}}
+				& \makecell{{\color{third4}\rule{1cm}{1cm}}}
+				& \makecell{{\color{third5}\rule{1cm}{1cm}}}
+				& proposition\\
+\bottomrule
+\end{tabular}
+\end{table}
+
+如果需要自定义颜色的话请选择 \lstinline{nocolor} 选项或者使用 \lstinline{color=none}，然后在导言区定义 structure、main、second、third 颜色，具体方法如下：
+\begin{lstlisting}
+\definecolor{structurecolor}{RGB}{0,0,0}
+\definecolor{main}{RGB}{70,70,70}    
+\definecolor{second}{RGB}{115,45,2}    
+\definecolor{third}{RGB}{0,80,80}   
+\end{lstlisting}
+
+
+\section{章标题显示风格}
+
+本模板内置 2 套\textit{章标题显示风格}，包含 \lstinline{hang}（默认）与 \lstinline{display} 两种风格，区别在于章标题单行显示（\lstinline{hang}）与双行显示（\lstinline{display}），本说明使用了 \lstinline{hang}。调用方式为
+\begin{lstlisting}
+\documentclass[hang]{elegantbook} %or
+\documentclass[titlestyle=hang]{elegantbook}
+\end{lstlisting}
+
+\section{数学环境简介}
+
+在我们这个模板中，我们定义了两种不同的定理模式 \lstinline{mode}，包括简单模式（\lstinline{simple}）和炫彩模式（\lstinline{fancy}），默认为 \lstinline{fancy} 模式，不同模式的选择为
+\begin{lstlisting}
+\documentclass[simple]{elegantbook} %or
+\documentclass[mode=simple]{elegantbook}
+\end{lstlisting}
+
+本模板定义了四大类环境
+
+\begin{itemize}
+\item \textit{定理类环境}，包含标题和内容两部分，全部定理类环境的编号均以章节编号。根据格式的不同分为 3 种
+   \begin{itemize}
+      \item \textcolor{main}{\textbf{definition}} 环境，颜色为 \textcolor{main}{main}；
+      \item \textcolor{second}{\textbf{theorem、lemma、corollary}} 环境，颜色为 \textcolor{second} {second}；
+      \item \textcolor{third}{\textbf{proposition}} 环境，颜色为 \textcolor{third}{third}。
+   \end{itemize}
+\item \textit{示例类环境}，有 \textbf{example、exercise、problem} 环境（对应于例，练习，例题），自动编号，编号以章节为单位。
+\item \textit{证明类环境}，有 \textbf{proof、note} 环境，特点是，有引导符或者结尾符，\textbf{note} 环境有引导符号，\textbf{proof} 环境有证明完毕符号。
+\item \textit{结论类环境}，有 \textbf{conclusion、assumption、property，remark、solution} 环境\footnote{本模板还添加了一个 result 选项，用于隐藏 \lstinline{solution} 和 \lstinline{proof} 环境，默认为显示（\lstinline{result=answer}），隐藏使用 \lstinline{result=noanswer}。}，三者均以粗体的引导词为开头，和普通段落格式一致。
+\end{itemize}
+
+\subsection{定理类环境的使用}
+由于本模板使用了 \lstinline{tcolorbox} 宏包来定制定理类环境，所以和普通的定理环境的使用有些许区别，定理的使用方法如下：
+\begin{lstlisting}
+\begin{theorem}{<theorem name>}{<label>}
+The content of theorem.
+\end{theorem}
+\end{lstlisting}
+
+第一个必选项 \lstinline{<theorem name>} 是定理的名字，第二个必选项 \lstinline{<label>} 是交叉引用时所用到的标签，交叉引用的方法为 \verb|\ref{thm:label}|。请注意，交叉引用时必须加上前缀 \lstinline{thm:}。
+
+其他相同用法的定理类环境有：
+
+\begin{table}[htbp]
+   \centering
+   \caption{定理类环境}
+     \begin{tabular}{llll}
+     \toprule
+     环境名 & 标签名 & 前缀 & 交叉引用 \\
+     \midrule
+     definition & label & def   & \lstinline|\ref{def:label}| \\
+     theorem & label & thm   & \lstinline|\ref{thm:label}| \\
+     lemma & label & lem   & \lstinline|\ref{lem:label}| \\
+     corrlary & label & cor   & \lstinline|\ref{cor:label}| \\
+     proposition & label & pro   & \lstinline|\ref{pro:label}| \\
+     \bottomrule
+     \end{tabular}%
+   \label{tab:theorem-class}%
+ \end{table}%
+ 
+
+\subsection{其他环境的使用}
+其他三种环境没有选项，可以直接使用，比如 \lstinline{example} 环境的使用方法与效果：
+\begin{lstlisting}
+\begin{example}
+   This is the content of example environment.
+\end{example}
+\end{lstlisting}
+
+\begin{example}
+This is the content of example environment.
+\end{example}
+
+这几个都是同一类环境，区别在于
+
+\begin{itemize}
+   \item 示例环境（example）、练习（exercise）与例题（problem）章节自动编号；
+   \item 注意（note）环境有提醒引导符，证明（proof）环境有证明结束符；
+   \item 结论（conclusion）等环境都是普通段落环境，引导词加粗。
+\end{itemize}
+
+\section{装饰物}
+
+本模板为章节后的装饰物（base）添加了隐藏选项，有 \lstinline{show} 和 \lstinline{hide} 两个选项。
+\begin{lstlisting}
+\documentclass[hide]{elegantbook} %or
+\documentclass[base=hide]{elegantbook}
+\end{lstlisting}
+
+\section{封面和徽标}
+
+本模板使用的封面图片来源于 \href{https://pixabay.com/en/tea-time-poetry-coffee-reading-3240766/}{pixabay.com}\footnote{感谢 China\TeX{} 提供免费图源网站，另外还推荐 \href{https://www.pexels.com/}{pexels.com}。}，图片完全免费，可用于任何场景。封面图片的尺寸为 $1280 \times 1024$, 更换图片的时候请\textbf{严格}按照封面图片尺寸进行裁剪。推荐一个免费的在线图片裁剪网站 \href{https://www.befunky.com/create/crop-photo/}{befunky.com}。
+
+本文用到的 Logo 比例为 1:1，也即正方形图片，在更换图片的时候请选择合适的图片进行替换。
+
+\section{列表环境}
+本模板借助于 \lstinline{tikz} 定制了 \lstinline{itemize} 和 \lstinline{enumerate} 环境，其中 \lstinline{itemize} 环境修改了 3 层嵌套，而 \lstinline{enumerate} 环境修改了 4 层嵌套（仅改变颜色）。示例如下\\[2ex]
+\begin{minipage}[b]{0.49\textwidth}
+\begin{itemize}
+   \item first item of nesti;
+   \item second item of nesti;
+   \begin{itemize}
+      \item first item of nestii;
+      \item second item of nestii;
+      \begin{itemize}
+         \item first item of nestiii;
+         \item second item of nestiii.
+      \end{itemize}   
+   \end{itemize}
+\end{itemize}
+\end{minipage}
+\begin{minipage}[b]{0.49\textwidth}
+\begin{enumerate}
+   \item first item of nesti;
+   \item second item of nesti;
+   \begin{enumerate}
+      \item first item of nestii;
+      \item second item of nestii;
+      \begin{enumerate}
+         \item first item of nestiii;
+         \item second item of nestiii.
+      \end{enumerate}   
+   \end{enumerate}
+\end{enumerate}
+\end{minipage}
+
+\section{参考文献}
+
+此模板使用了 \BibTeX{} 来生成参考文献，在中文示例中，使用了 \lstinline{gbt7714} 宏包。参考文献示例：~\cite{en1} 使用了中国一个大型的 P2P 平台（人人贷）的数据来检验男性投资者和女性投资者在投资表现上是否有显著差异。
+
+你可以在谷歌学术，Mendeley，Endnote 中获得文献条目（bib item），然后把它们添加到 \lstinline{reference.bib} 中。在文中引用的时候，引用它们的键值（bib key）即可。注意需要在编译的过程中添加 \BibTeX{} 编译。如果你想在参考文献中添加未引用的文献，可以使用
+\begin{lstlisting}[frame=single]
+\nocite{EINAV2010,Havrylchyk2018} %or include some bibitems
+\nocite{*} %include all the bibitems
+\end{lstlisting}
+
+\section{添加序章}
+
+如果你想在第一章前面添序章，不改变原本章节序号，你可以在第一章内容前面使用 
+\begin{lstlisting}
+\chapter*{Introduction}
+\addcontentsline{toc}{chapter}{Introduction} 
+\markboth{Introduction}{} 
+The content of introduction.
+\end{lstlisting}
+
+\chapter{ElegantBook 写作示例}
+
+\section{Lebesgue 积分}
+在前面各章做了必要的准备后，本章开始介绍新的积分。在 Lebesgue 测度理论的基础上建立了 Lebesgue 积分，其被积函数和积分域更一般，可以对有界函数和无界函数统一处理。正是由于 Lebesgue 积分的这些特点，使得 Lebesgue 积分比 Riemann 积分具有在更一般条件下的极限定理和累次积分交换积分顺序的定理，这使得 Lebesgue 积分不仅在理论上更完善，而且在计算上更灵活有效。
+
+Lebesgue 积分有几种不同的定义方式。我们将采用逐步定义非负简单函数，非负可测函数和一般可测函数积分的方式。
+
+由于现代数学的许多分支如概率论、泛函分析、调和分析等常常用到一般空间上的测度与积分理论，在本章最后一节将介绍一般的测度空间上的积分。
+
+\subsection{积分的定义}
+
+我们将通过三个步骤定义可测函数的积分。首先定义非负简单函数的积分。以下设 $E$ 是 $\mathcal{R}^n$ 中的可测集。
+
+
+\begin{definition}{可积性}{int}
+设 $ f(x)=\sum\limits_{i=1}^{k} a_i \chi_{A_i}(x)$ 是 $E$ 上的非负简单函数，其中 $\{A_1,A_2,\ldots,A_k\}$ 是 $E$ 上的一个可测分割，$a_1,a_2,\ldots,a_k$ 是非负实数。定义 $f$ 在 $E$ 上的积分为 $\int_{a}^b f(x)$
+\begin{equation}
+   \label{inter}
+   \int_{E} f dx = \sum_{i=1}^k a_i m(A_i) \pi \alpha\beta\sigma\gamma\nu\xi\epsilon\varepsilon. 
+\end{equation}
+一般情况下 $0 \leq \int_{E} f dx \leq \infty$。若 $\int_{E} f dx < \infty$，则称 $f$ 在 $E$ 上可积。
+\end{definition}
+
+一个自然的问题是，Lebesgue 积分与我们所熟悉的 Riemann 积分有什么联系和区别？在 4.4 在我们将详细讨论 Riemann 积分与 Lebesgue 积分的关系。这里只看一个简单的例子。设 $D(x)$ 是区间 $[0,1]$ 上的 Dirichlet 函数。即 $D(x)=\chi_{Q_0}(x)$，其中 $Q_0$ 表示 $[0,1]$ 中的有理数的全体。根据非负简单函数积分的定义，$D(x)$ 在 $[0,1]$ 上的 Lebesgue 积分为
+\begin{equation}
+   \label{inter2}
+   \int_0^1 D(x)dx = \int_0^1 \chi_{Q_0} (x) dx = m(Q_0) = 0
+\end{equation}
+即 $D(x)$ 在 $[0,1]$ 上是 Lebesgue 可积的并且积分值为零。但 $D(x)$ 在 $[0,1]$ 上不是 Riemann 可积的。
+
+
+
+有界变差函数是与单调函数有密切联系的一类函数。有界变差函数可以表示为两个单调递增函数之差。与单调函数一样，有界变差函数几乎处处可导。与单调函数不同，有界变差函数类对线性运算是封闭的，它们构成一线空间。练习题 \ref{exer:43} 是一个性质的证明。
+
+\begin{exercise}\label{exer:43}
+设 $f \notin\in L(\mathcal{R}^1)$，$g$ 是 $\mathcal{R}^1$ 上的有界可测函数。证明函数
+\begin{equation}
+   \label{ex:1}
+   I(t) = \int_{\mathcal{R}^1} f(x+t)g(x)dx \quad t \in \mathcal{R}^1
+\end{equation}
+是 $\mathcal{R}^1$ 上的连续函数。
+\end{exercise}
+
+\begin{problem}
+即 $D(x)$ 在 $[0,1]$ 上是 Lebesgue 可积的并且积分值为零。但 $D(x)$ 在 $[0,1]$ 上不是 Riemann 可积的。
+\end{problem}
+
+\begin{solution}
+即 $D(x)$ 在 $[0,1]$ 上是 Lebesgue 可积的并且积分值为零。但 $D(x)$ 在 $[0,1]$ 上不是 Riemann 可积的。
+\end{solution}
+
+\begin{theorem}{Fubini 定理}{fubi} 
+（1）若 $f(x,y)$ 是 $\mathcal{R}^p\times\mathcal{R}^q$ 上的非负可测函数，则对几乎处处的 $x\in \mathcal{R}^p$，$f(x,y)$ 作为 $y$ 的函数是 $\mathcal{R}^q$ 上的非负可测函数，$g(x)=\int_{\mathcal{R}^q}f(x,y) dy$ 是 $\mathcal{R}^p$ 上的非负可测函数。并且
+\begin{equation}
+   \label{eq:461}
+   \int_{\mathcal{R}^p\times\mathcal{R}^q} f(x,y) dxdy=\int_{\mathcal{R}^p}\left(\int_{\mathcal{R}^q}f(x,y)dy\right)dx.
+\end{equation}
+（2）若 $f(x,y)$ 是 $\mathcal{R}^p\times\mathcal{R}^q$ 上的可积函数，则对几乎处处的 $x\in\mathcal{R}^p$，$f(x,y)$ 作为 $y$ 的函数是 $\mathcal{R}^q$ 上的可积函数，并且 $g(x)=\int_{\mathcal{R}^q}f(x,y) dy$ 是 $\mathcal{R}^p$ 上的可积函数。而且~\ref{eq:461} 成立。
+\end{theorem}
+
+\begin{note}
+在本模板中，引理（lemma），推论（corollary）的样式和定理~\ref{thm:fubi} 的样式一致，包括颜色，仅仅只有计数器的设置不一样。
+\end{note}
+
+我们说一个实变或者复变量的实值或者复值函数是在区间上平方可积的，如果其绝对值的平方在该区间上的积分是有限的。所有在勒贝格积分意义下平方可积的可测函数构成一个希尔伯特空间，也就是所谓的 $L^2$ 空间，几乎处处相等的函数归为同一等价类。形式上，$L^2$ 是平方可积函数的空间和几乎处处为 0 的函数空间的商空间。
+
+\begin{proposition}{最优性原理}{max}
+如果 $u^*$ 在 $[s,T]$ 上为最优解，则 $u^*$ 在 $[s, T]$ 任意子区间都是最优解，假设区间为 $[t_0, t_1]$ 的最优解为 $u^*$ ，则 $u(t_0)=u^{*}(t_0)$，即初始条件必须还是在 $u^*$ 上。
+\end{proposition}
+
+我们知道最小二乘法可以用来处理一组数据，可以从一组测定的数据中寻求变量之间的依赖关系，这种函数关系称为经验公式。本课题将介绍最小二乘法的精确定义及如何寻求点与点之间近似成线性关系时的经验公式。假定实验测得变量之间的 $n$ 个数据，则在平面上，可以得到 $n$ 个点，这种图形称为 “散点图”，从图中可以粗略看出这些点大致散落在某直线近旁, 我们认为其近似为一线性函数，下面介绍求解步骤。
+
+\begin{figure}[htbp]
+	\centering
+	\includegraphics[width=0.6\textwidth]{scatter.pdf}
+	\caption{散点图示例 $\hat{y}=a+bx$ \label{fig:scatter}}
+\end{figure}
+
+以最简单的一元线性模型来解释最小二乘法。什么是一元线性模型呢？监督学习中，如果预测的变量是离散的，我们称其为分类（如决策树，支持向量机等），如果预测的变量是连续的，我们称其为回归。回归分析中，如果只包括一个自变量和一个因变量，且二者的关系可用一条直线近似表示，这种回归分析称为一元线性回归分析。如果回归分析中包括两个或两个以上的自变量，且因变量和自变量之间是线性关系，则称为多元线性回归分析。对于二维空间线性是一条直线；对于三维空间线性是一个平面，对于多维空间线性是一个超平面。
+
+\begin{property}
+柯西列的性质
+\begin{enumerate}
+\item $\{x_k\}$ 是柯西列，则其子列 $\{x_k^i\}$ 也是柯西列。
+\item $x_k\in \mathcal{R}^n$，$\rho(x,y)$ 是欧几里得空间，则柯西列收敛，$(\mathcal{R}^n,\rho)$ 空间是完备的。
+\end{enumerate}
+\end{property}
+
+\begin{conclusion}
+回归分析（regression analysis) 是确定两种或两种以上变量间相互依赖的定量关系的一种统计分析方法。运用十分广泛，回归分析按照涉及的变量的多少，分为一元回归和多元回归分析；按照因变量的多少，可分为简单回归分析和多重回归分析；按照自变量和因变量之间的关系类型，可分为线性回归分析和非线性回归分析。
+\end{conclusion}
+
+\nocite{*} 
+
+\bibliography{reference}
+
+\appendix
+\chapter{基本数学工具}
+
+本附录包括了计量经济学中用到的一些基本数学，我们扼要论述了求和算子的各种性质，研究了线性和某些非线性方程的性质，并复习了比例和百分数。我们还介绍了一些在应用计量经济学中常见的特殊函数，包括二次函数和自然对数，前 4 节只要求基本的代数技巧，第 5 节则对微分学进行了简要回顾；虽然要理解本书的大部分内容，微积分并非必需，但在一些章末附录和第 3 篇某些高深专题中，我们还是用到了微积分。
+
+\section{求和算子与描述统计量}
+
+\textbf{求和算子} 是用以表达多个数求和运算的一个缩略符号，它在统计学和计量经济学分析中扮演着重要作用。如果 $\{x_i: i=1, 2, \ldots, n\}$ 表示 $n$ 个数的一个序列，那么我们就把这 $n$ 个数的和写为：
+
+\begin{equation}
+\sum_{i=1}^n x_i \equiv x_1 + x_2 +\cdots + x_n
+\end{equation}
+
+
+\chapter{最小示例}
+
+\begin{lstlisting}
+\documentclass[lang=cn,11pt]{elegantbook}
+% title info
+\title{Title}
+\subtitle{Subtitle is here}
+% bio info
+\author{Your Name}
+\institute{XXX University}
+\date{\today}
+% extra info
+\version{1.00}
+\equote{Victory won\rq t come to us unless we go to it. --- M. Moore}
+\logo{logo.png}
+\cover{cover.jpg}
+
+\begin{document}
+
+\maketitle
+\tableofcontents
+\mainmatter
+\hypersetup{pageanchor=true}
+% add preface chapter here if needed
+\chapter{Example Chapter Title}
+The content of chapter one.
+
+\bibliography{reference}
+
+\end{document}
+\end{lstlisting}
+
+\end{document}

elegantbook-en.tex

@@ -0,0 +1,410 @@
+\documentclass[noanswer,fancy,blue,11pt]{elegantbook}
+
+\title{An Elegant \LaTeX{} Template for Books}
+\subtitle{Classic Elegant\LaTeX{} Template}
+
+\author{Ethan Deng \& Liam Huang}
+\institute{Elegant\LaTeX{} Program}
+\date{\today}
+\version{3.07}
+
+\equote{Victory won\rq t come to us unless we go to it. --- M. Moore}
+
+\logo{logo.png}
+\cover{cover.jpg}
+
+
+
+\begin{document}
+
+\maketitle
+\tableofcontents
+\clearpage
+\thispagestyle{empty}
+\mainmatter
+\hypersetup{pageanchor=true}
+
+\chapter{Elegant\LaTeX{} Templates}
+
+On the occasion of this release, we, Elegant\LaTeX{} Program, want to reintroduce our work to you. We are committed to creating a series of beautiful, elegant, easy to use \LaTeX{} templates for users. The Elegant\LaTeX{} is currently composed of \href{https://github.com/ElegantLaTeX/ElegantNote}{ElegantNote}, \href{https://github.com/ElegantLaTeX/ElegantBook}{ElegantBook}, \href{https://github.com/ElegantLaTeX/ElegantPaper}{ElegantPaper} for typesetting notes, books, and working papers respectively. 
+
+The latest version is available on \href{https://github.com/ElegantLaTeX/ElegantBook/releases}{Github}. This guide describes some settings of this template and how to use it. If you have any other questions, suggestions or comments, please feel free to contact us, our email is \email{elegantlatex2e@gmail.com}.
+
+
+\section{ElegantBook Updates}
+Over these years, we've received a lot of feedbacks from users, with major issues related to font installation, coding support, theorem class environments floats, theorem cross-page, cross-references, and etc. We really think about these problems, it wasn't elegant to let the user install the font for visual beauty since users got into a lot of trouble, which went against the concept of our template. So we've removed that from the new version, users don't have to install any fonts. Let's take a look at the ElegantBook template 3.x updates:
+
+\begin{enumerate}
+   \item Remove custom font settings;
+   \item Add English and Chinese modes;
+   \item \lstinline{PDFLaTeX} and \lstinline{XeLaTeX} support;
+   \item Use the \lstinline{tcolorbox} package to re-written the theorem class environments;
+   \item Theorem class environments name updated, and cross-references fixed;
+   \item renew color themes and add gray and black theme;
+   \item Color name updated, link color unified;
+   \item New Elegant\LaTeX{} Logo;
+   \item New cover and decorations, remove the watermark;
+   \item Fix appendix;
+   \item Add code highlighting;
+   \item Beautify the list environments;
+   \item Add simple theorem mode;
+   \item Add base hide option.
+\end{enumerate}
+
+
+\chapter{ElegantBook Settings}
+
+
+\section{Compilation Methods}
+This template is based on the Standard LaTeX book class,  so the options of book class also work. The default encoding is UTF-8, and \TeX{} Live is recommended. The test environment is Win10 + \TeX{} Live 2018. 
+
+
+\section{Languages}
+
+We defined one option named \lstinline{lang}, this option has two alternative values, \lstinline{lang=en} (default) or \lstinline{lang=cn}. \lstinline{lang=cn} will make the captions of figure/table, abstract name, refname etc. Chinese. You can use this option as
+\begin{lstlisting}
+\documentclass[en]{elegantbook} 
+\documentclass[lang=en]{elegantbook}
+\end{lstlisting}
+
+\begin{remark}
+You can input Chinese Characters in either \lstinline{lang=en} or \lstinline{lang=cn}. If you are using (\lstinline{lstlisting}) environment, and it contains Chinese characters, please use \lstinline{XeLaTeX}.
+\end{remark}
+
+
+\section{Color Themes}
+This template contains 5 color themes,they are  \textcolor{main1}{\lstinline{green}}\footnote{original default theme.}、\textcolor{main2}{\lstinline{cyan}}、\textcolor{main3}{\lstinline{blue}}（default）、\textcolor{main4}{\lstinline{gray}}、\textcolor{main5}{\lstinline{black}}. You can choose \lstinline{green} with  
+\begin{lstlisting}
+\documentclass[green]{elegantbook} %or
+\documentclass[color=green]{elegantbook}
+\end{lstlisting}
+
+
+\begin{table}[htbp]
+\caption{ElegantBook Themes\label{tab:color thm}\label{tab:color thm}}
+\centering
+\begin{tabular}{ccccccc}
+\toprule
+	        & \textcolor{main1}{green} 
+	        & \textcolor{main2}{cyan} 
+	        & \textcolor{main3}{blue}
+	        & \textcolor{main4}{gray} 
+	        & \textcolor{main5}{black} 
+	        & Main Environments\\
+\midrule
+structure & \makecell{{\color{structure1}\rule{1cm}{1cm}}}
+				& \makecell{{\color{structure2}\rule{1cm}{1cm}}}
+				& \makecell{{\color{structure3}\rule{1cm}{1cm}}} 
+				& \makecell{{\color{structure4}\rule{1cm}{1cm}}} 
+				& \makecell{{\color{structure5}\rule{1cm}{1cm}}} 
+				& chapter \ section \ subsection \\
+
+main      & \makecell{{\color{main1}\rule{1cm}{1cm}}}
+				& \makecell{{\color{main2}\rule{1cm}{1cm}}}
+				& \makecell{{\color{main3}\rule{1cm}{1cm}}}
+				& \makecell{{\color{main4}\rule{1cm}{1cm}}}
+				& \makecell{{\color{main5}\rule{1cm}{1cm}}}
+				& definition \ exercise \ problem \ solution \\
+
+second    & \makecell{{\color{second1}\rule{1cm}{1cm}}}
+				& \makecell{{\color{second2}\rule{1cm}{1cm}}}
+				& \makecell{{\color{second3}\rule{1cm}{1cm}}}
+				& \makecell{{\color{second4}\rule{1cm}{1cm}}}
+				& \makecell{{\color{second5}\rule{1cm}{1cm}}}
+				& theorem \ lemma \ corollary\\
+
+third     & \makecell{{\color{third1}\rule{1cm}{1cm}}}
+				& \makecell{{\color{third2}\rule{1cm}{1cm}}}
+				& \makecell{{\color{third3}\rule{1cm}{1cm}}}
+				& \makecell{{\color{third4}\rule{1cm}{1cm}}}
+				& \makecell{{\color{third5}\rule{1cm}{1cm}}}
+				& proposition\\
+\bottomrule
+\end{tabular}
+\end{table}
+
+If you want to customize the colors, please select \lstinline{nocolor} or use \lstinline{color=none} , then define the main, second, and third colors in the preamble section as follows:
+\begin{lstlisting}[frame=single]
+\definecolor{structurecolor}{RGB}{60,113,183}
+\definecolor{main}{RGB}{0,166,82}%
+\definecolor{second}{RGB}{255,134,24}%
+\definecolor{third}{RGB}{0,174,247}% 
+\end{lstlisting}
+
+
+\section{Chapter Title Display Styles}
+
+This template contains 2 sets of \textit{title display styles},which including \lstinline{hang}(default) and \lstinline{display} style, 
+
+The difference is that the chapter heading is displayed on a single line (\lstinline{hang}) and on a double line (\lstinline{display}) , and this guide uses \lstinline{hang} . To change display style
+\begin{lstlisting}
+\documentclass[hang]{elegantbook} %or
+\documentclass[titlestyle=hang]{elegantbook}
+\end{lstlisting}
+
+\section{Theorem Class Environments}
+We defined two sets of theorem modes, \lstinline{simple} style and \lstinline{fancy} style (default), you can change to \lstinline{simple} mode by 
+\begin{lstlisting}
+\documentclass[simple]{elegantbook} %or
+\documentclass[mode=simple]{elegantbook}
+\end{lstlisting}
+
+In this template, we defined four categories of theorem class environments
+
+\begin{itemize}
+\item \textit{Theorem Environment}, including title and contents, numbering within chapter. There are three types depending on the format
+   \begin{itemize}
+      \item \textcolor{main}{\textbf{definition}} environment, the color is  \textcolor{main}{main};
+      \item \textcolor{second}{\textbf{theorem, lemma, corollary}} environment, the color is \textcolor{second} {second};
+      \item \textcolor{third}{\textbf{proposition}} environment, the color is \textcolor{third}{third}.
+   \end{itemize}
+\item \textit{Example Environments}, including \textbf{example, exercise, problem} environment, auto numering within chapter.
+\item \textit{Proof Environment}, including \textbf{proof, note} environment, they contain introductory symbol (\textbf{note} environment) or ending symbol (\textbf{proof} environment).
+\item \textit{Conclusion Environments}, including \textbf{conclusion, assumption, property, remark, solution}\footnote{We also define and key \lstinline{result}, which can hide the \lstinline{solution} and \lstinline{proof} environments. You can switch by \lstinline{result=answer} or \lstinline{result=noanswer}} environment, all of these begin with boldfaced words, and the contents are the same as a normal paragraph.
+\end{itemize}
+
+\subsection{Theorem Class Environments}
+The template uses the \lstinline{tcolorbox} package to customize the theorem class environments, it is slightly different from the normal theorem environments. The usage is as follows:
+\begin{lstlisting}
+\begin{theorem}{<theorem name>}{<label>}
+The content of theorem.
+\end{theorem}
+\end{lstlisting}
+
+The first parameter \lstinline{<theorem name>} is the name of the theorem, and the second parameter \lstinline{label} is the label used in cross-reference with \verb|ref{thm:label}|. Note that cross-references must be prefixed with \lstinline{thm:}. 
+
+Other theorem class environments with the same usage are:
+
+\begin{table}[htbp]
+   \centering
+   \caption{Theorem Class Environments}
+     \begin{tabular}{llll}
+     \toprule
+     Environment & Label text & Prefix & Cross-reference \\
+     \midrule
+     definition & label & def   & \lstinline|\ref{def:label}| \\
+     theorem & label & thm   & \lstinline|\ref{thm:label}| \\
+     lemma & label & lem   & \lstinline|\ref{lem:label}| \\
+     corrlary & label & cor   & \lstinline|\ref{cor:label}| \\
+     proposition & label & pro   & \lstinline|\ref{pro:label}| \\
+     \bottomrule
+     \end{tabular}%
+   \label{tab:theorem-class}%
+ \end{table}%
+ 
+
+\subsection{Other Customized Environments}
+The other three math environments can be used directly since there are no options for them, the \lstinline{example} environment usage:
+\begin{lstlisting}
+\begin{example}
+This is the content of example environment.
+\end{example}
+\end{lstlisting}
+
+The effect is as follows:
+
+\begin{example}
+This is the content of example environment.
+\end{example}
+
+These are all the same environments, except that
+
+\begin{itemize}
+   \item example, exercise, problem environments numbering within chapter;
+   \item note with introductory symbol, proof with ending symbol;
+   \item conclusion environment with boldfaced keywords and normal paragraph content.
+\end{itemize}
+
+\section{Base Hide Option}
+We defined an option to hide the base below the chapter, you can use it by
+\begin{lstlisting}
+\documentclass[hide]{elegantbook} %or
+\documentclass[base=hide]{elegantbook}
+\end{lstlisting}
+
+
+\section{Cover and Logo}
+
+The cover image used in this template is from \href{https://pixabay.com/en/tea-time-poetry-coffee-reading-3240766/}{pixabay.com}\footnote{Thank China\TeX{} for providing free image source site, and \href{https://www.pexels.com/}{pexels.com} is also recommended.}. The image is completely free and can be used in any circumstance. The cover image size is $1280 \times 1024$, when changing the cover, please crop it according to the size of the cover picture strictly. Here is a free online image clipping site: \href{https://www.befunky.com/create/crop-photo/}{befunky.com}.
+
+This Logo ratio is 1:1, that is square picture. In the replacement of the picture, please choose the appropriate picture to replace.
+
+\section{List Environments}
+This template uses \lstinline{tikz} to customize \lstinline{itemize} and \lstinline{enumerate} environments, the \lstinline{itemize} environment customized to the third depth, and \lstinline{enumerate} environment customized to fourth depth. The effect is as follows\\[2ex]
+\begin{minipage}[b]{0.49\textwidth}
+\begin{itemize}
+   \item first item of nesti;
+   \item second item of nesti;
+   \begin{itemize}
+      \item first item of nestii;
+      \item second item of nestii;
+      \begin{itemize}
+         \item first item of nestiii;
+         \item second item of nestiii.
+      \end{itemize}   
+   \end{itemize}
+\end{itemize}
+\end{minipage}
+\begin{minipage}[b]{0.49\textwidth}
+\begin{enumerate}
+   \item first item of nesti;
+   \item second item of nesti;
+   \begin{enumerate}
+      \item first item of nestii;
+      \item second item of nestii;
+      \begin{enumerate}
+         \item first item of nestiii;
+         \item second item of nestiii.
+      \end{enumerate}   
+   \end{enumerate}
+\end{enumerate}
+\end{minipage}
+
+\section{Bibliography}
+
+This template uses \BibTeX{} to generate the bibliography, the default bibliography style is \lstinline{aer}. Let's take a glance at the citation effect, ~\cite{en1} use data from a major peer-to-peer lending marketplace in China to study whether female and male investors evaluate loan performance differently. 
+
+If you want to use \BibTeX{}, you must create a file named \lstinline{reference.bib}, and add bib items (from Google Scholar, Mendeley, EndNote, and etc.) to \lstinline{reference.bib} file, and cite the bibkey in the \lstinline{tex} file. The Bib\TeX{} will automatically generate the bibliography for you for the reference you cited. If you want to add some noncited reference to the bibliography, you can use 
+\begin{lstlisting}
+\nocite{EINAV2010, Havrylchyk2018} 
+\end{lstlisting}
+
+\section{Preface}
+
+If you want to add a preface before the first chapter without changing the number of chapter, you can use it before the first chapter 
+\begin{lstlisting}
+\chapter*{Preface}
+\addcontentsline{toc}{chapter}{Preface} 
+\markboth{Preface}{} 
+The content of Preface.
+\end{lstlisting}
+
+\chapter{ElegantBook Writing Sample}
+\lipsum[1]
+% source: https://www.maths.tcd.ie/~dwilkins/LaTeXPrimer/Theorems.html
+
+\section{Writing Sample}
+
+We will define the integral of a measurable function in three steps. First, we define the integral of a nonnegative simple function. Let $E$ be the measurable set in $\mathcal{R}^N$.
+
+\begin{definition}{Left Coset}{}
+Let $H$ be a subgroup of a group~$G$.  A \emph{left coset} of $H$ in $G$ is a subset of $G$ that is of the form $xH$, where $x \in G$ and $xH = \{ xh : h \in H \}$. Similarly a \emph{right coset} of $H$ in $G$ is a subset of $G$ that is of the form $Hx$, where $Hx = \{ hx : h \in H \}$
+\end{definition}
+
+\begin{note}
+Note that a subgroup~$H$ of a group $G$ is itself a left coset of $H$ in $G$.
+\end{note}
+
+\lipsum[2]
+
+\begin{theorem}{Lagrange's Theorem}{}
+Let $G$ be a finite group, and let $H$ be a subgroup of $G$.  Then the order of $H$ divides the order of $G$.
+\end{theorem}
+
+\lipsum[3]
+
+   
+\begin{proposition}{Size of Left Coset}{}
+Let $H$ be a finite subgroup of a group $G$.  Then each left coset of $H$ in $G$ has the same number of elements as $H$.
+\end{proposition}
+
+\begin{proof}
+Let $z$ be some element of $xH \cap yH$.  Then $z = xa$ for some $a \in H$, and $z = yb$ for some $b \in H$. If $h$ is any element of $H$ then $ah \in H$ and $a^{-1}h \in H$, since $H$ is a subgroup of $G$. But $zh = x(ah)$ and $xh = z(a^{-1}h)$ for all $h \in H$. Therefore $zH \subset xH$ and $xH \subset zH$, and thus $xH = zH$.  Similarly $yH = zH$, and thus $xH = yH$, as required.
+\end{proof}
+
+\begin{figure}[htbp]
+	\centering
+	\includegraphics[width=0.6\textwidth]{scatter.pdf}
+	\caption{Matplotlib: Scatter Plot Example\label{fig:scatter}}
+\end{figure}
+
+Regression analysis is a powerful statistical method that allows you to examine the relationship between two or more variables of interest. While there are many types of regression analysis, at their core they all examine the influence of one or more independent variables on a dependent variable. The process of performing a regression allows you to confidently determine which factors matter most, which factors can be ignored, and how these factors influence each other.
+
+Let's continue using our application training example. In this case, we'd want to measure the historical levels of satisfaction with the events from the past three years or so, as well as any information possible in regards to the independent variables. 
+
+
+\begin{table}[htbp]
+  \small
+  \centering
+  \caption{Auto MPG and Price \label{tab:reg}}
+    \begin{tabular}{lcc}
+    \toprule
+                    &       (1)         &        (2)      \\
+    \midrule
+    mpg             &    -238.90***     &      -49.51     \\
+                    &     (53.08)       &      (86.16)    \\
+    weight          &                   &      1.75***    \\
+                    &                   &      (0.641)    \\
+    constant        &     11,253***     &       1,946     \\
+                    &     (1,171)       &      (3,597)   \\
+    obs             &        74         &         74     \\
+    $R^2$           &      0.220        &       0.293    \\
+    \bottomrule
+    \multicolumn{3}{l}{\scriptsize Standard errors in parentheses} \\
+    \multicolumn{3}{l}{\scriptsize *** p<0.01, ** p<0.05, * p<0.1} \\
+    \end{tabular}%
+\end{table}%
+
+\lipsum[1-2]
+
+\begin{itemize}
+	\item Routing and resource discovery;
+	     \begin{itemize} 
+      	   	\item Language Models
+       	 	\item Vector Space Models
+    		 \end{itemize}
+	\item Resilient and scalable computer networks;
+	\item Distributed storage and search.
+\end{itemize}
+
+
+\nocite{en1,en2,en3} 
+
+\bibliography{reference}
+
+\appendix
+\chapter{Mathematical Tools}
+
+This appendix covers some of the basic mathematics used in econometrics. We briefly discuss the properties of summation operators, study the properties of linear and some nonlinear equations, and review the ratios and percentages. We also introduce some special functions that are common in econometrics applications, including quadratic functions and natural logarithms. The first four sections require only basic algebraic techniques. The fifth section briefly reviews differential Calculus Although Calculus is not necessary to understand much of this book, it is used in some of the end-of-chapter appendices and in some of the more advanced topics in part 3.
+
+\section{Summation Operator and Description Statistics}
+
+\textbf{Summation Operator} is an abbreviation used to express the summation of numbers, it plays an important role in statistics and econometrics analysis. If $\{x_i: i=1, 2, \ldots, n\}$ is a sequence of $n$ numbers, the summation of the $n$ numbers is：
+
+\begin{equation}
+\sum_{i=1}^n x_i \equiv x_1 + x_2 +\cdots + x_n
+\end{equation}
+
+\chapter{A Minimal Example}
+
+\begin{lstlisting}[frame=single]
+\documentclass{elegantbook}
+% title info
+\title{Title}
+\subtitle{Subtitle is here}
+% bio info
+\author{Your Name}
+\institute{XXX University}
+\date{\today}
+% extra info
+\version{1.00}
+\equote{Victory won\rq t come to us unless we go to it. --- M. Moore}
+\logo{logo.png}
+\cover{cover.jpg}
+
+\begin{document}
+
+\maketitle
+\tableofcontents
+\mainmatter
+\hypersetup{pageanchor=true}
+% add preface chapter here if needed
+\chapter{Example Chapter Title}
+The content of chapter one.
+
+\bibliography{reference}
+\end{document}
+\end{lstlisting}
+
+\bibliographystyle{aer}
+\end{document}

guide.tex

@@ -1,266 +0,0 @@
-%!TEX program = xelatex
-\documentclass[color=blue,mathpazo,titlestyle=hang,11pt]{elegantbook}
-
-\author{ddswhu \& LiamHuang0205}
-\email{elegantlatex2e@gmail.com}
-
-\zhtitle{优美的\LaTeX{} 书籍}
-\zhend{模板}
-\entitle{Elegant\LaTeX{} Book}
-\enend{Template}
-\version{2.10}
-\myquote{Victory won\rq t come to us unless we go to it.}
-\logo{logo.pdf}
-\cover{cover.pdf}
-
-%green color
-   \definecolor{main1}{RGB}{0,120,2}
-   \definecolor{seco1}{RGB}{230,90,7}
-   \definecolor{thid1}{RGB}{0,160,152}
-%cyan color
-   \definecolor{main2}{RGB}{0,175,152}
-   \definecolor{seco2}{RGB}{239,126,30}
-   \definecolor{thid2}{RGB}{120,8,13}
-%blue color
-   \definecolor{main3}{RGB}{20,50,104}
-   \definecolor{seco3}{RGB}{180,50,131}
-   \definecolor{thid3}{RGB}{7,127,128}
-
-\usepackage{makecell}
-\usepackage{lipsum}
-\usepackage{texnames}
-
-
-\begin{document}
-\maketitle
-\tableofcontents
-\mainmatter
-\chapter{ElegantBook 模板的由来}
-
-只有当自己想去做一件事的时候才能把事情做好！
-
-\section{ElegantNote 的前世今生}
-
-写 ElegantNote 模板的初衷是为了简化我在写笔记中的工作，因为我不会写类文件和包文件，所以，最当初是想拜托小L做出一个华丽，清爽的 \LaTeX{} 模板，最好是类文件，而且因为这样可以简化导言区复杂的内容。后来，和小L一拍即合，遂开始一起做Elegant\LaTeX{}的设计。
-
-在学校的时候，搞定了定理环境样式的代码。因为不想重复 China\TeX{} 那个经典的页眉页脚，我找到了计量书上的一个图案，小L拿 Ti\emph{k}Z 一点一点把那个画出来了，不过我最后还是用的截取的方式得到的图案。慢慢地，我们把初步的样子做出来了。
-
-2013年的暑假开始后，我对那个初步的模板做了一点改动，然后用它写了Dynamic Programing 的笔记，并且，在写的过程中，对模板加了封面，也就是模板现在的封面（logo 在Version 2.00中已经改了）。至此，模板的大致样子终于出来了，不过当时也在写笔记的过程中知道了某些不足，比如
-\begin{enumerate}
-\item 定理类的环境在我们这个模板中不能浮动，也不能跨页，在Version 2.00 版本中已经添加。
-\item 某些环境不足，比如例子、假设、性质、结论等环境，在1.00版本中已经增加了这几个环境，在2.00版本中，环境设置更加全面。
-\item 一些我们不可预知的错误将会不期而遇。
-\item 一些我们目前没有需求，但是可以继续改进的地方，比如表格样式，比如抄录样式等。
-\end{enumerate}
-
-写完那个笔记之后越发让我对 Elegant\LaTeX{} 模板的制作更有激情，在和小L相互讨论的几天里，我们终于得到了1.00 版本的 ElegantNote 模板。
-
-\section{ElegantBook 的诞生}
-
-在实际应用中，我们发现了一个比较重要的问题，因为在一般的笔记中，定义、定理经常一起出现，和课本区别比较大的是，通常是一堆定义之后，出现一堆性质或者定理。如果出现这种情况，使用 ElegantNote 模板会导致分块很严重，影响排版质量和美观。思前想后，我们决定将 ElegantNote 模板更新为 ElegantBook 模板，并在未来重新设计一个简洁版本的 ElegantNote。 至此ElegantBook 才横空出世，由于更名原因，ElegantBook 1.00 版本也即原来的 ElegantNote， 而ElegantBook 2.00 为目前的正式版本。
-
-\section{一张白纸折腾出的一个模板}
-
-我以前从未写过类文件，所以，写这个模板的过程必然是折腾的过程，在写模板的过程中，最主要参考了《写给\LaTeXe{} 类与宏包的作者》\cite{packagewriter}、moderncv.cls 文件、\href{http://aff.whu.edu.cn/huangzh/}{武汉大学黄正华老师的论文模板}、《\LaTeXe{} 完全学习手册》\cite{complete}、{\itshape The Not So Short Introduction to \LaTeXe{}}\cite{oetiker2010not}以及各大\LaTeX{} 疑问解答网站，在此为无私奉献的组织和个人表示感谢！
-
-{\color{thid}忍不住插个图！}
-
-\begin{figure}[!hbtp]
-\includegraphics[width=0.8\textwidth]{happy.jpg}
-\caption{Happiness,we have it!\label{figur:happy}}
-\end{figure}
-
-\chapter{ElegantBook 开服说明}
-\section{关于我们}
- 我们目前都是学生，接触 \LaTeX{} 的时间也不是很长，因此，对于此模板的错误还请多多包涵！ 目前，模板的拓展性或者可移植性有待完善，所以，我们强烈建议用户不要大幅修改模板文件，我们的初衷是提供一套模板，让初学者能够使用一些比较美观，优雅的模板。如果在使用过程中，想修改一些简单的东西需要帮忙，请联系我们，我们的邮箱是：\href{elegantlatex2e@gmail.com}{elegantlatex2e@gmail.com}。我们将竭尽全力提供帮助！
-
-值此版本发行之际，我们 Elegant\LaTeX{} 项目组向大家重新介绍一下我们的工作，我们的主页是 \href{http://elegantlatex.tk}{http://elegantlatex.tk}，我们这个项目致力于打造一系列美观、优雅、简便的模板方便使用者记录学习历史。其中目前在实施或者在规划中的子项目有 书籍模板ElegantBook、笔记模板ElegantNote、幻灯片模板 ElegantSlide。这些子项目的名词是一体的，请在使用这些名词的时候不要将其断开（如 Elegant Note是不正确的写法）。并且，Elegant\LaTeX{}  Book 指的即是 ElegantBook。
-
-\section{关于字体}
-
-基于本模板追求视觉上的美观的角度，强烈建议使用者安装./fonts/文件夹下的字体。出于版权的考虑，务必不能将此模板用于涉及盈利目的的商业行为，否则，后果自负，本模板带的字体仅供学习使用，如果您喜欢某种字体，请自行购买正版。本文主要使用的字体如下
-\begin{itemize}
-\itemsep=3pt
-\parskip=0pt
-\item Adobe Garamond Pro
-\item Minion Pro \& Myriad Pro  \& Inconsolata
-\item 方正字体
-\item 华文中宋
-\end{itemize}
-
-\begin{note}
-中文正文使用了华文中宋，Minion Pro为英文衬线字体（\verb|\rmfamily|），Myriad Pro为英文非衬线字体（\verb|\sffamily|），Inconsolata 为英文打字机字体（\verb|\ttfamily|）。
-
-并且，如果系统内安装了Adobe 字体，大家可以把模板中使用到的黑体，楷体，宋体等字替换成 Adobe 字体，这样可以达到最佳效果。
-\end{note}
-
-\section{文档说明}
-\subsection{编译方式}
-本模板基于book文类，所以book的选项对于本模板也是有效的。但是，只支持 \XeLaTeX{}，编码为 UTF-8，推荐使用 \TeX{}live编译。作者编写环境为Win8.1(64bit)+\TeX{}live 2013，由于使用了参考文献，所以，编译顺序为\XeLaTeX->\BibTeX->\XeLaTeX->\XeLaTeX。
-
-本文特殊选项设置共有3类，分为{\color{main}颜色} 、{\color{main} 数学字体 }以及{\color{main} 章标题显示风格}。
-
-\subsection{选项设置}
-第一类为{\color{main}颜色}主题设置，内置 3 组颜色主题，分别为 \verb|green|（默认），\verb|cyan|，\verb|blue|，另外还有一个自定义的选项 \verb|nocolor|，用户\textbf{必须}在使用模板的时候选择某个颜色主题或选择 \verb|nocolor|选项。调用颜色主题 \verb|green| 的方法为\verb|\documentclass[green]{elegantbook}|或者使用\verb|\documentclass[color=green]{elegantbook}|。需要改变颜色的话请选择 \verb|nocolor|选项或者使用 \verb|color=none|，然后在导言区定义main、seco、thid颜色，具体的方法如下：
-\begin{verbatim}
-\definecolor{main}{RGB}{70,70,70}    %定义main颜色值
-\definecolor{seco}{RGB}{115,45,2}    %定义seco颜色值
-\definecolor{thid}{RGB}{0,80,80}     %定义thid颜色值
-\end{verbatim}
-
-第二类为{\color{main}数学字体}设置，有两个可选项，分别是 mathpazo（默认） 和 mtpro2 字体，调用mathpazo 字体使用 \verb|\documentclass[mathpazo]{elegantbook}|，调用 mtpro2 字体时需要把 \verb|mathpazo|换成 \verb|mtpro|，mathpazo 不需要用户自己安装字体，mtpro2 的字体需要自己安装。
-
-\begin{table}[htp]
-\centering
-\begin{tabular}{ccccc}
-\toprule
-	  & green & cyan & blue & 主要使用的环境\\
-\midrule
-main & \makecell{{\color{main1}\rule{1cm}{1cm}}}& \makecell{{\color{main2}\rule{1cm}{1cm}}}&\makecell{ {\color{main3}\rule{1cm}{1cm}}}& newthem \ newlemma \ newcorol\\
-
-seco &\makecell{ {\color{seco1}\rule{1cm}{1cm}}}& \makecell{{\color{seco2}\rule{1cm}{1cm}}}&\makecell{ {\color{seco3}\rule{1cm}{1cm}}}&newdef\\
-
-thid &\makecell{ {\color{thid1}\rule{1cm}{1cm}}}& \makecell{{\color{thid2}\rule{1cm}{1cm}}}&\makecell{ {\color{thid3}\rule{1cm}{1cm}}}&newprop\\
-\bottomrule
-\end{tabular}
-\caption{ElegantBook 模板中的三套颜色主题\label{tab:color thm}}
-\end{table}
-
-第三类为{\color{main} 章标题显示风格}，包含 \verb|hang|（默认）与 \verb|display|两种风格，区别在于章标题单行显示（\verb|hang|）与双行显示（\verb|display|），本说明使用了 \verb|hang|。调用方式为 \verb|\documentclass[hang]{elegantbook}|或者 \verb|\documentclass[titlestyle=hang]{elegantbook}|。
-
-综合起来，同时调用三个选项使用 \verb|\documentclass[color=X,Y,titlestyle=Z]{elegantbook}|。其中 \verb|X| 可以选择 \verb|green|,\verb|cyan|,\verb|blue|,\verb|none|；\verb|Y| 可以选择 \verb|mathpazo|或者 \verb|mtpro|；\verb|Z|可以选择 \verb|hang| 或者 \verb|display|。
-
-\subsection{数学环境简介}
-在我们这个模板中，定义了三大类环境
-\begin{enumerate}
-\item 定理类环境，包含标题和内容两部分。根据格式的不同分为3种
-\begin{itemize}
-\item {\color{main} newthem、newlemma、newcorol} 环境，颜色为主颜色main，三者编号均以章节为单位；
-\item {\color{main} newdef} 环境，含有一个可选项，编号以章节为单位，颜色为seco；
-\item {\color{main} newprop} 环境，含有一个可选项，编号以章节为单位，颜色为thid。
-\end{itemize}
-\item 证明类环境，有  {\color{main} newproof、note、remark、solution} 环境，特点是，有引导符和引导词，并且 newproof、solution 环境有结束标志。
-\item 结论类环境，有 {\color{main}  conclusion、assumption、property} 环境，三者均以粗体的引导词为开头，和普通段落格式一致。
-\item 示例类环境--- {\color{main} example、exercise}环境，编号以章节为单位，其中exercise环境有引导符。
-\item 自定义环境--- {\color{main} custom}，带一个必选参数，格式与conclusion 环境很类似。
-\end{enumerate}
-
-\subsection{可编辑的字段}
-在模板中，可以编辑的字段分别为作者\verb|\author|、\verb|\email|、\verb|\zhtitle|、\verb|\zhend|、\verb|\entitle|、\verb|\enend|、\verb|\version|。并且，可以根据自己的喜好把封面水印效果的\verb|cover.pdf|替换掉，以及封面中用到的\verb|logo.pdf|。
-
-\chapter{ElegantBook 写作示例}
-
-\section{灵魂不随便出卖，代码也不随便瞎写}
-\lipsum[3]
-考虑如下的随机动态规划问题
-\begin{align*}
-&\max(\min)\quad \mathbb{E}\int_{t_0}^{t_1}f(t,x,u)\,dt\\
-&\quad\mbox{s.t.} \quad dx=g(t,x,u)dt+\sigma(t,x,u)dz\\
-&\quad \hspace{2.em} k(0)=k_0\;\text{given}
-\end{align*}
-
-where $z$ is stochastic process or white noise or wiener process.
-
-\begin{newdef}[Wiener Process]
-If $z$ is wiener process, then for any partition $t_0,t_1,t_2,\ldots$ of time interval, the random variables $z(t_1)-z(t_0),z(t_2)-z(t_1),\ldots$ are independently and normally distributed with zero means and variance $t_1-t_0,t_2-t_1,\ldots$
-\end{newdef}
-
-\lipsum[5]
-
-\begin{example}
-$E$ and $F$ be two events such that $\mbf{P}(E)=\mbf{P}(F)=1/2$, and $\mbf{P}(E\cap F)=1/3$, let $\mathscr{F}=\sigma(Y)$,  $X$ and $Y$ be the indicate function of $E$ and $F$ respectively. How to compute $\mathbb{E}[ X\mid \mathscr{F} ]$?
-\end{example}
-\lipsum[4]
-\begin{exercise}
-let $S=l^\infty=\big\{(x_n)\mid \exists\, M \text{ such that } \forall n, |x_n|\leq M,x_n\in \mathbb{R}\big\}$, $\rho_{\infty}(x,y)=\sup\limits_{n\geq 1}|x_n-y_n|$, show that $\big(l^\infty,\rho_{\infty}\big)$ is complete.
-\end{exercise}
-
-\begin{newthem}[勾股定理]\label{them}
-勾股定理的数学表达（Expression）为
-\[a^2+b^2=c^2\]
-其中$a,b$为直角三角形的两条直角边长，$c$为直角三角形斜边长。
-\end{newthem}
-
-\begin{note}
-在本模板中，引理（lemma），推论（corollary ）的样式和定理的样式一致，包括颜色，仅仅只有计数器的设置不一样。在这个例稿中，我们将不给出引理推论的例子。
-\end{note}
-
-
-\lipsum[4]
-
-\begin{newprop}[最优性原理]\label{thm}
-如果$u^*$在$[s,T]$上为最优解，则$u^*$在$[s,T]$任意子区间都是最优解，假设区间为$[t_0,t_1]$的最优解为$u^*$，则$u(t_0)=u^{*}(t_0)$，即初始条件必须还是在$u^*$上。
-\end{newprop}
-
-\lipsum[5-6]
-\begin{newcorol}
-假设$V(\cdot,\cdot)$为值函数，则跟据最大值原理，有如下推论
-\[
-V(k,z)=\max\Big\{u\big(zf(k)-y\big)+\beta \mathbb{E}V(y,z^\prime)\Big\}
-\]
-\end{newcorol}
-
-\begin{newproof}
-因为 $y^*=\alpha\beta z k^\alpha$，$V(k,z)=\alpha/1-\alpha\beta\ln k_0+1/1-\alpha\beta \ln z_0+\Delta$。
-\begin{align*}
-\text{右边}&=\Big\{u\big(zf(k)-y\big)+\beta \mathbb{E}V(y,z^\prime)\Big\}\\
-&=\ln(zk^\alpha-\alpha\beta zk^\alpha)+\beta\mathbb{E}\Big[\frac{\alpha}{1-\alpha\beta}\ln y+\frac{1}{1-\alpha\beta}\ln z^\prime+\Delta\Big]\\
-&=\ln(1-\alpha\beta)zk^\alpha+\beta\Big\{\mathbb{E}\big[\frac{\alpha}{1-\alpha\beta}\ln \alpha\beta z k^\alpha\big]+\frac{1}{1-\alpha\beta}\mathbb{E}[\ln z^\prime]+\Delta\Big\}
-\end{align*}
-利用$\mathbb{E}[\ln z^\prime]=0$，并将对数展开得
-\begin{align*}
-\text{右边}&=\ln (1-\alpha\beta)+\ln z+\alpha\ln k+\frac{\alpha\beta}{1-\alpha\beta}\big[\ln \alpha\beta+\ln z+\alpha\ln k\big]+\frac{\beta}{1-\alpha\beta}\mu+\beta \Delta\\
-&=\frac{\alpha}{1-\alpha\beta}\ln k+\frac{1}{1-\alpha\beta}\ln z+\Delta
-\end{align*}
-所以$\text{左边}=\text{右边}$，证毕。
-\end{newproof}
-
-
-
-\begin{property}
-Properties of Cauchy Sequence
-\begin{enumerate}\parskip=0pt \itemsep=0pt
-\item $\{x_k\}$ is cauchy sequence then $\{x_k^i\}$ is cauchy sequence.
-\item $x_k\in \mathbb{R}^n$, $\rho(x,y)$ is Euclidean, then cauchy is equivalent to convergent, $(\mathbb{R}^n,\rho)$ metric space is complete.
-\end{enumerate}
-\end{property}
-
-
-\lipsum[7]
-
-\begin{custom}{Application}
-This is one example of the custom environment, the key word is given by the option of custom environment.
-\end{custom}
-
-
-\lipsum[6]
-\begin{newdef}[Contraction mapping]\label{def:2.3}
-$(S,\rho)$ is the metric space, $T: S\to S$, If there exists $\alpha\in(0,1)$ such that for any $x$ and $y\in S$, the distance
-\begin{equation}
-\rho(Tx,Ty)\leq \alpha\rho(x,y)
-\end{equation}
-Then $T$ is a {\color{main} contraction mapping}.
-\end{newdef}
-
-\ref{def:2.3}
-
-\ref{them}
-\begin{remark}
-\begin{enumerate}
-\parskip=0pt \itemsep=0pt
-\item $T:S\to S$, where $S$ is a metric space, if  for any $x,y\in S$, $\rho(Tx,Ty)<\rho(x,y)$ is not contraction mapping.
-\item Contraction mapping is continuous map.
-\end{enumerate}
-\end{remark}
-
-
-\begin{conclusion}
-看到一则小幽默，是这样说的：{\color{main} 别人都关心你飞的有多高，只有我关心你的翅膀好不好吃！}说多了都是泪啊！
-\end{conclusion}
-
-
-\bibliographystyle{ieeetr}
-\bibliography{reference}
-\addcontentsline{toc}{chapter}{参考文献}
-
-\end{document}

image/scatter.py

@@ -0,0 +1,27 @@
+# This file is the source file of the scatter.pdf
+# source page: https://matplotlib.org/gallery/shapes_and_collections/scatter.html
+import numpy as np
+import matplotlib.pyplot as plt
+
+# Fixing random state for reproducibility
+np.random.seed(19680801)
+
+
+N = 50
+x = np.random.rand(N)
+y = np.random.rand(N)
+colors = np.random.rand(N)
+area = (30 * np.random.rand(N))**2  # 0 to 15 point radii
+
+ax = plt.subplot(111)
+ax.scatter(x, y, s=area, c=colors, alpha=0.5)
+
+# Hide the right and top spines
+ax.spines['right'].set_visible(False)
+ax.spines['top'].set_visible(False)
+
+# Only show ticks on the left and bottom spines
+ax.yaxis.set_ticks_position('left')
+ax.xaxis.set_ticks_position('bottom')
+
+plt.savefig('scatter.pdf', transparent=True)

reference.bib

@@ -1,18 +1,68 @@
-@misc{oetiker2010not,
+
-  title={The Not So Short Introduction to {\LaTeXe}},
+@article{en3,
-  author={Oetiker, Tobias and Partl, Hubert and Hyna, Irene and Schlegl, Elisabeth},
+  title={{The Mechanism and Effectiveness of Credit Scoring of P2P Lending Platform: Evidence from Renrendai.com}},
-  year={2010}
+  author={Li, Qiang and Chen, Liwen and Zeng, Yong},
-  }
+  journal={China Finance Review International},
-
+  volume={8},
-@misc{packagewriter,
+  number={3},
-  title={{\LaTeXe} for class and package writers},
+  pages={256--274},
-  author={The {\LaTeX} 3 Project},
+  year={2018},
-  year={1999},
+  publisher={Emerald Publishing Limited}
-}
+}
-@misc{complete,
+
-  title={{\LaTeXe} 完全学习手册},
+
-  author={胡大伟},
+@article{en2,
-  year={2011},
+   author = {Carlstrom, Charles T and Fuerst, Timothy S},
-  publisher={清华大学出版社}
+   title = {{Agency Costs, Net Worth, and Business Fluctuations: A Computable General Equilibrium Analysis}},
-}
+   journal = {The American Economic Review},
-
+   pages = {893-910},
+   ISSN = {0002-8282},
+   year = {1997},
+   type = {Journal Article}
+}
+
+@article{en1,
+   author = {Quadrini, Vincenzo},
+   title = {{Financial Frictions in Macroeconomic Fluctuations}},
+   journal = {FRB Richmond Economic Quarterly},
+   volume = {97},
+   number = {3},
+   pages = {209-254},
+   year = {2011},
+   type = {Journal Article}
+}
+
+@article{cn1,
+   author = {方军雄},
+   title = {{所有制、制度环境与信贷资金配置}},
+   journal = {经济研究},
+   number = {12},
+   pages = {82-92},
+   ISSN = {0577-9154},
+   year = {2007},
+   type = {Journal Article}
+}
+
+@article{cn2,
+   author = {刘凤良 and 章潇萌 and 于泽},
+   title = {{高投资、结构失衡与价格指数二元分化}},
+   journal = {金融研究},
+   number = {02},
+   pages = {54-69},
+   ISSN = {1002-7246},
+   year = {2017},
+   type = {Journal Article}
+}
+
+@article{cn3,
+   author = {吕捷 and 王高望},
+   title = {{CPI 与 PPI “背离”的结构性解释}},
+   journal = {经济研究},
+   volume = {50},
+   number = {04},
+   pages = {136-149},
+   ISSN = {0577-9154},
+   year = {2015},
+   type = {Journal Article}
+}
+