diff --git a/elegantbook.cls b/elegantbook.cls
index e944381..56cc619 100644
--- a/elegantbook.cls
+++ b/elegantbook.cls
@@ -1,11 +1,11 @@
 %%%%%%%%%%%%%%%%%%%%%%
 %% start of file `elegantbook.cls'.
-%% Copyright 2013-2019 ElegantLaTeX (ElegantLaTeX2e@gmail.com)
+%% Copyright 2013-2019 ElegantLaTeX (ddswhu@126.com)
 %%
 %% This work may be distributed and/or modified freely
 %% available at https://ddswhu.me/resource/
 % %
-%% Last Modification 2018-9-11
+%% Last Modification 2018-12-02
 %%%%%%%%%%%%%%%%%%%%%
 % % !Mode:: "TeX:UTF-8"
 \NeedsTeXFormat{LaTeX2e}
@@ -44,22 +44,22 @@
 \RequirePackage{xcolor}
 \ifdefstring{\ELEGANT@color}{green}{
   \definecolor{main}{RGB}{0,120,2}%
-  \definecolor{seco}{RGB}{230,90,7}%
-  \definecolor{thid}{RGB}{0,160,152}%
+  \definecolor{second}{RGB}{230,90,7}%
+  \definecolor{third}{RGB}{0,160,152}%
 %  \base{greenbase.pdf}%
 }{\relax}
 
 \ifdefstring{\ELEGANT@color}{cyan}{
   \definecolor{main}{RGB}{0,175,152}%
-  \definecolor{seco}{RGB}{239,126,30}%
-  \definecolor{thid}{RGB}{120,8,13}%
+  \definecolor{second}{RGB}{239,126,30}%
+  \definecolor{third}{RGB}{120,8,13}%
  % \base{cyanbase.pdf}%
 }{\relax}
 
 \ifdefstring{\ELEGANT@color}{blue}{
   \definecolor{main}{RGB}{20,50,104}%
-  \definecolor{seco}{RGB}{180,50,131}%
-  \definecolor{thid}{RGB}{7,127,128}%
+  \definecolor{second}{RGB}{180,50,131}%
+  \definecolor{third}{RGB}{7,127,128}%
  % \base{bluebase.pdf}%
 }{\relax}
 
@@ -112,7 +112,7 @@
 \newcommand*{\myquote}[1]{\def\@myquote{#1}}
 
 \newcommand*{\logo}[1]{
- \def\@logo{\includegraphics[height=5.8cm]{#1}
+ \def\@logo{\includegraphics[width=0.5\textwidth]{#1}
  }
 }
 
@@ -202,20 +202,18 @@
 \defaultfontfeatures{Mapping=tex-text}
 \RequirePackage{xunicode}
 \RequirePackage{xltxtra}
-\setmainfont[Ligatures=TeX]{Minion Pro} %  (\textrm)
-\setsansfont{Myriad Pro} %  (\textsf)
-\setmonofont{Inconsolata}%Palatino Linotype
+\setmainfont[Ligatures=TeX]{Times New Roman} %  (\textrm)
+\setsansfont{Arial} %  (\textsf)
+\setmonofont{Courier New}%Palatino Linotype
 %-中文字体设置-%
 \RequirePackage{xeCJK}
 \setCJKmainfont[BoldFont={黑体},ItalicFont={楷体}]{宋体}%方正书宋_GBK Adobe Song Std L华文中宋
-\setCJKsansfont[BoldFont={黑体}]{楷体}
+\setCJKsansfont[BoldFont={黑体},ItalicFont={楷体}]{楷体}
 \setCJKmonofont{楷体}
 \XeTeXlinebreaklocale "zh"
 \XeTeXlinebreakskip = 0pt plus 1pt
 
-\setCJKfamilyfont{new}{方正苏新诗柳楷简体}
-\setCJKfamilyfont{note}{方正启体简体}
-\newfontfamily\gara{Adobe Garamond Pro}
+
 
 %% 定理\引理\定义样式设置
 \RequirePackage{environ}
@@ -225,123 +223,123 @@
 \definecolor{bule}{RGB}{18,29,57}
 \definecolor{bablue}{RGB}{248,248,248}
 
-%define the style of tikz newthemsty
-\tikzstyle{newthemsty}
+%define the style of tikz etheoremsty
+\tikzstyle{etheoremsty}
           =[draw=main, fill=blue!10,very thick,rectangle,
            rounded corners, inner sep=10pt, inner ysep=20pt]
-\tikzstyle{newthemstytitle}
+\tikzstyle{etheoremstytitle}
           =[fill=main, text=blue!10]
 
-\tikzstyle{newdefinitionsty}
-          =[draw=seco, fill=yellow!20,very thick,rectangle,
+\tikzstyle{edefinitionsty}
+          =[draw=second, fill=yellow!20,very thick,rectangle,
            rounded corners, inner sep=10pt, inner ysep=20pt,
            text=black,fill opacity=0.9]
-\tikzstyle{newdefinitionstytitle}
-         =[fill=seco, text=white]
+\tikzstyle{edefinitionstytitle}
+         =[fill=second, text=white]
 
-\tikzstyle{newpropositionsty}
-          =[draw=thid, fill=bablue,very thick,rectangle,
+\tikzstyle{epropositionositionsty}
+          =[draw=third, fill=bablue,very thick,rectangle,
            rounded corners, inner sep=10pt, inner ysep=20pt,
            text=black,fill opacity=0.9]
-\tikzstyle{newpropositionstytitle}
-         =[fill=thid, text=white]
+\tikzstyle{epropositionositionstytitle}
+         =[fill=third, text=white]
 
-%%define the "newthem" environment
-\newcounter{Newthem}[chapter]
-\renewcommand{\theNewthem}{\thechapter.\arabic{Newthem}}
-\NewEnviron{newthem}[1][{}]{%
+%%define the "etheorem" environment
+\newcounter{etheorem}[chapter]
+\renewcommand{\theetheorem}{\thechapter.\arabic{etheorem}}
+\NewEnviron{etheorem}[1][{}]{%
 \begin{figure}[!htb]
 \noindent\centering
 \begin{tikzpicture}
-\node[newthemsty] (box){
+\node[etheoremsty] (box){
      \begin{minipage}{0.93\columnwidth}
-        \sffamily\refstepcounter{Newthem}\BODY
+        \sffamily\refstepcounter{etheorem}\BODY
      \end{minipage}};
-\node[newthemstytitle,right=10pt] at (box.north west){
-     \bf\textsf{Theorem \theNewthem\; #1}};
-\node[newthemstytitle, rounded corners] at (box.east) {$\clubsuit$};
+\node[etheoremstytitle,right=10pt] at (box.north west){
+     \bf\textsf{Theorem \theetheorem\; #1}};
+\node[etheoremstytitle, rounded corners] at (box.east) {$\clubsuit$};
 \end{tikzpicture}
 \end{figure}}
 
-%%define the "newlemma" environment
-\newcounter{Newlemma}[chapter]
-\renewcommand{\theNewlemma}{\thechapter.\arabic{Newlemma}}
-\NewEnviron{newlemma}[1][{}]{%
+%%define the "elemma" environment
+\newcounter{elemma}[chapter]
+\renewcommand{\theelemma}{\thechapter.\arabic{elemma}}
+\NewEnviron{elemma}[1][{}]{%
 \begin{figure}[!htb]
 \noindent\centering
 \begin{tikzpicture}
-\node[newthemsty] (box){
+\node[etheoremsty] (box){
      \begin{minipage}{0.93\columnwidth}
-        \sffamily\refstepcounter{Newlemma}\BODY
+        \sffamily\refstepcounter{elemma}\BODY
      \end{minipage}};
-\node[newthemstytitle,right=10pt] at (box.north west){
-     \bf\textsf{Lemma \theNewlemma\; #1}};
-\node[newthemstytitle, rounded corners] at (box.east) {$\clubsuit$};
+\node[etheoremstytitle,right=10pt] at (box.north west){
+     \bf\textsf{Lemma \theelemma\; #1}};
+\node[etheoremstytitle, rounded corners] at (box.east) {$\clubsuit$};
 \end{tikzpicture}
 \end{figure}}
 
-%%define the "newcorol" environment
-\newcounter{Newcorol}[chapter]
-\renewcommand{\theNewcorol}{\thechapter.\arabic{Newcorol}}
-\NewEnviron{newcorol}[1][{}]{%
+%%define the "ecorollary" environment
+\newcounter{ecorollary}[chapter]
+\renewcommand{\theecorollary}{\thechapter.\arabic{ecorollary}}
+\NewEnviron{ecorollary}[1][{}]{%
 \begin{figure}[!htb]
 \noindent\centering
 \begin{tikzpicture}
-\node[newthemsty] (box){
+\node[etheoremsty] (box){
      \begin{minipage}{0.93\columnwidth}
-        \sffamily\refstepcounter{Newcorol}\BODY
+        \sffamily\refstepcounter{ecorollary}\BODY
      \end{minipage}};
-\node[newthemstytitle,right=10pt] at (box.north west){
-     \bf\textsf{Corollary \theNewcorol\; #1}};
-\node[newthemstytitle, rounded corners] at (box.east) {$\clubsuit$};
+\node[etheoremstytitle,right=10pt] at (box.north west){
+     \bf\textsf{Corollary \theecorollary\; #1}};
+\node[etheoremstytitle, rounded corners] at (box.east) {$\clubsuit$};
 \end{tikzpicture}
 \end{figure}}
 
 %% define the "proposition" environment
-\newcounter{Newprop}[chapter]
-\renewcommand{\theNewprop}{\thechapter.\arabic{Newprop}}
-\NewEnviron{newprop}[1][{}]{%
+\newcounter{eproposition}[chapter]
+\renewcommand{\theeproposition}{\thechapter.\arabic{eproposition}}
+\NewEnviron{eproposition}[1][{}]{%
 \begin{figure}[!htb]\noindent\centering
 \begin{tikzpicture}
-\node[newpropositionsty] (box){
+\node[epropositionositionsty] (box){
      \begin{minipage}{0.93\columnwidth}
-        \sffamily\refstepcounter{Newprop}\BODY
+        \sffamily\refstepcounter{eproposition}\BODY
      \end{minipage}};
-\node[newpropositionstytitle,right=10pt] at (box.north west){
-     \bf\textsf{Proposition \theNewprop\; #1}};
-\node[newpropositionstytitle, rounded corners] at (box.east) {$\spadesuit$};
+\node[epropositionositionstytitle,right=10pt] at (box.north west){
+     \bf\textsf{Proposition \theeproposition\; #1}};
+\node[epropositionositionstytitle, rounded corners] at (box.east) {$\spadesuit$};
 \end{tikzpicture}
 \end{figure}}
 
 
-%%define the "newdef" environment
-\newcounter{Newdefinition}[chapter]
-\renewcommand{\theNewdefinition}{\thechapter.\arabic{Newdefinition}}
-\NewEnviron{newdef}[1][{}]{%
+%%define the "edefinition" environment
+\newcounter{edefinition}[chapter]
+\renewcommand{\theedefinition}{\thechapter.\arabic{edefinition}}
+\NewEnviron{edefinition}[1][{}]{%
 \begin{figure}[!htb]\noindent\centering
 \begin{tikzpicture}
-\node [newdefinitionsty] (dbox){\begin{minipage}{0.93\textwidth}\itshape\refstepcounter{Newdefinition}\BODY\end{minipage}};
-\node[newdefinitionstytitle, right=10pt] at (dbox.north west) {\bf\textsf{Definition \theNewdefinition\; #1}};
-\node[newdefinitionstytitle, rounded corners] at (dbox.east) {$\heartsuit$};
+\node [edefinitionsty] (dbox){\begin{minipage}{0.93\textwidth}\itshape\refstepcounter{edefinition}\BODY\end{minipage}};
+\node[edefinitionstytitle, right=10pt] at (dbox.north west) {\bf\textsf{Definition \theedefinition\; #1}};
+\node[edefinitionstytitle, rounded corners] at (dbox.east) {$\heartsuit$};
 \end{tikzpicture}
 \end{figure}}
 
 
 %% Example with counter
-\newcounter{Newexam}[chapter]
-\renewcommand{\theNewexam}{\thechapter.\arabic{Newexam}}
-\newenvironment{example}{\par\noindent\textbf{Example\,\stepcounter{Newexam}\theNewexam: }\color{black!90}}{\par}
+\newcounter{example}[chapter]
+\renewcommand{\theexample}{\thechapter.\arabic{example}}
+\newenvironment{example}{\par\noindent\textbf{Example\,\stepcounter{example}\theexample: }\color{black!90}}{\par}
 
 %% Exercise with counter
-\newcounter{Newexer}[chapter]
-\renewcommand{\theNewexer}{\thechapter.\arabic{Newexer}}
-\newenvironment{exercise}{\par\noindent{\makebox[0pt][r]{\color{main}\ding{50}\;\;}}\textbf{Exercise\,\stepcounter{Newexer}\theNewexer: }}{\par}
+\newcounter{exercise}[chapter]
+\renewcommand{\theexercise}{\thechapter.\arabic{exercise}}
+\newenvironment{exercise}{\par\noindent{\makebox[0pt][r]{\color{main}\ding{50}\;\;}}\textbf{Exercise\,\stepcounter{exercise}\theexercise: }}{\par}
 
-%%define the note and newproof environment
+%%define the note and eproof environment
 \RequirePackage{pifont,manfnt}
-\newenvironment{note}{\par\itshape\CJKfamily{note}\gara\noindent{\makebox[0pt][r]{\scriptsize\color{red!90}\textdbend\quad}\textbf{Note:}}}{\par}
+\newenvironment{note}{\par\itshape\noindent{\makebox[0pt][r]{\scriptsize\color{red!90}\textdbend\quad}\textbf{Note:}}}{\par}
 
-\newenvironment{remark}{\par\itshape\CJKfamily{note}\gara\noindent{\makebox[0pt][r]{\color{red!90}\ding{96}\quad}\textbf{Remarks:}}}{\par}
+\newenvironment{remark}{\par\itshape\noindent{\makebox[0pt][r]{\color{red!90}\ding{96}\quad}\textbf{Remarks:}}}{\par}
 
 
 \newenvironment{assumption}{\par\noindent\textbf{Assumptions: }\color{black!90}}{\par}
@@ -350,7 +348,7 @@
 
 \newenvironment{property}{\par\noindent\textbf{Properties: }}{\par}
 
-\newenvironment{newproof}{\par\noindent{\makebox[0pt][r]{\color{main}\ding{43}\;\;}\textbf{Proof:}}\color{black!90}\small}{\hfill$\Box$\quad\par}
+\newenvironment{eproof}{\par\noindent{\makebox[0pt][r]{\color{main}\ding{43}\;\;}\textbf{Proof:}}\color{black!90}\small}{\hfill$\Box$\quad\par}
 
 \newenvironment{solution}{\par\noindent{\makebox[0pt][r]{\color{main}\ding{46}\;\;}\textbf{Solution:}}\small}{\hfill$\Box$\quad\par}
 
@@ -391,10 +389,10 @@
 \vfill
 \vspace*{2cm}
 \begin{center}
-\color{seco}
+\color{second}
 \rule{0.8\textwidth}{2pt}\\
-\Huge {\color{main} \bfseries \the\entitle } {\color{seco} \bfseries \the\enend}\\
-{\Huge \CJKfamily{new}{\color{main} \the\zhtitle } \the\zhend}\\
+\Huge {\color{main} \bfseries \the\entitle } {\color{second} \bfseries \the\enend}\\
+{\Huge \bfseries{\color{main} \the\zhtitle } \the\zhend}\\
 \rule{0.8\textwidth}{2pt}
 \end{center}
 \vskip3ex
@@ -410,16 +408,16 @@
 \vfill
 \vspace{2cm}
 \begin{flushright}
-\color{seco}
+\color{second}
 \rule{0.45\textwidth}{1pt}\\
-整理：{\color{main}\@author}\\
-整理时间：{\color{main}\today}\\
-Email: \hyperlink{\the\email}{\the\email}\\
+作者：{\color{main}\@author}\\
+时间：{\color{main}\today}\\
+邮箱: \hyperlink{\the\email}{\the\email}\\
 \rule{0.45\textwidth}{1pt}
 \end{flushright}
 \vfill
 \begin{center}
-\color{seco} Version: \the\version
+\color{second} Version: \the\version
 \end{center}
 \vfil\eject
 }
diff --git a/figure/logo.png b/figure/logo.png
index 7e530a5..4c30412 100644
Binary files a/figure/logo.png and b/figure/logo.png differ
diff --git a/figure/logo_old.png b/figure/logo_old.png
new file mode 100644
index 0000000..7e530a5
Binary files /dev/null and b/figure/logo_old.png differ
diff --git a/guide.pdf b/guide.pdf
index 4ff0b7c..de7a6a6 100644
Binary files a/guide.pdf and b/guide.pdf differ
diff --git a/guide.tex b/guide.tex
index f312fc5..e78a16a 100644
--- a/guide.tex
+++ b/guide.tex
@@ -8,23 +8,23 @@
 \zhend{模板}
 \entitle{Elegant\LaTeX{} Book}
 \enend{Template}
-\version{2.30}
+\version{2.40}
 \myquote{Victory won\rq t come to us unless we go to it.}
-\logo{logo.pdf}
+\logo{logo.png}
 \cover{cover.pdf}
 
 %green color
    \definecolor{main1}{RGB}{0,120,2}
-   \definecolor{seco1}{RGB}{230,90,7}
-   \definecolor{thid1}{RGB}{0,160,152}
+   \definecolor{second1}{RGB}{230,90,7}
+   \definecolor{third1}{RGB}{0,160,152}
 %cyan color
    \definecolor{main2}{RGB}{0,175,152}
-   \definecolor{seco2}{RGB}{239,126,30}
-   \definecolor{thid2}{RGB}{120,8,13}
+   \definecolor{second2}{RGB}{239,126,30}
+   \definecolor{third2}{RGB}{120,8,13}
 %blue color
    \definecolor{main3}{RGB}{20,50,104}
-   \definecolor{seco3}{RGB}{180,50,131}
-   \definecolor{thid3}{RGB}{7,127,128}
+   \definecolor{second3}{RGB}{180,50,131}
+   \definecolor{third3}{RGB}{7,127,128}
 
 \usepackage{makecell}
 \usepackage{lipsum}
@@ -64,7 +64,7 @@
 
 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！}
+{\color{third}忍不住插个图！}
 
 \begin{figure}[!hbtp]
 \includegraphics[width=0.8\textwidth]{happy.jpg}
@@ -79,7 +79,7 @@
 
 如果您在使用此模板，方便的话，是否可以把您使用此模板制作的成品发一份给我们，谢谢！
 
-\section{关于字体}
+\section{关于字体（已删除）}
 
 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
 
@@ -104,11 +104,11 @@
 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：
+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、second、third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
+\definecolor{second}{RGB}{115,45,2}    %定义second颜色值
+\definecolor{third}{RGB}{0,80,80}     %定义third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。
@@ -119,11 +119,11 @@
 \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\\
+main & \makecell{{\color{main1}\rule{1cm}{1cm}}}& \makecell{{\color{main2}\rule{1cm}{1cm}}}&\makecell{ {\color{main3}\rule{1cm}{1cm}}}& etheorem \ elemma \ ecorollary\\
 
-seco &\makecell{ {\color{seco1}\rule{1cm}{1cm}}}& \makecell{{\color{seco2}\rule{1cm}{1cm}}}&\makecell{ {\color{seco3}\rule{1cm}{1cm}}}&newdef\\
+second &\makecell{ {\color{second1}\rule{1cm}{1cm}}}& \makecell{{\color{second2}\rule{1cm}{1cm}}}&\makecell{ {\color{second3}\rule{1cm}{1cm}}}&edefinition\\
 
-thid &\makecell{ {\color{thid1}\rule{1cm}{1cm}}}& \makecell{{\color{thid2}\rule{1cm}{1cm}}}&\makecell{ {\color{thid3}\rule{1cm}{1cm}}}&newprop\\
+third &\makecell{ {\color{third1}\rule{1cm}{1cm}}}& \makecell{{\color{third2}\rule{1cm}{1cm}}}&\makecell{ {\color{third3}\rule{1cm}{1cm}}}&eproposition\\
 \bottomrule
 \end{tabular}
 \caption{ElegantBook 模板中的三套颜色主题\label{tab:color thm}}
@@ -138,11 +138,11 @@ thid &\makecell{ {\color{thid1}\rule{1cm}{1cm}}}& \makecell{{\color{thid2}\rule{
 \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。
+\item {\color{main} etheorem、elemma、ecorollary} 环境，颜色为主颜色main，三者编号均以章节为单位；
+\item {\color{main} edefinition} 环境，含有一个可选项，编号以章节为单位，颜色为second；
+\item {\color{main} eproposition} 环境，含有一个可选项，编号以章节为单位，颜色为third。
 \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 证明类环境，有  {\color{main} eproof、note、remark、solution} 环境，特点是，有引导符和引导词，并且 eproof、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。
@@ -164,9 +164,9 @@ thid &\makecell{ {\color{thid1}\rule{1cm}{1cm}}}& \makecell{{\color{thid2}\rule{
 
 where $z$ is stochastic process or white noise or wiener process.
 
-\begin{newdef}[Wiener Process]
+\begin{edefinition}[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}
+\end{edefinition}
 
 \lipsum[5]
 
@@ -178,11 +178,11 @@ $E$ and $F$ be two events such that $\mbf{P}(E)=\mbf{P}(F)=1/2$, and $\mbf{P}(E\
 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{thm:31}
+\begin{etheorem}[勾股定理]\label{thm:31}
 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}
+\end{etheorem}
 
 \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。
@@ -191,19 +191,19 @@ let $S=l^\infty=\big\{(x_n)\mid \exists\, M \text{ such that } \forall n, |x_n|\
 
 \lipsum[4]
 
-\begin{newprop}[最优性原理]
+\begin{eproposition}[最优性原理]
 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}
+\end{eproposition}
 
 \lipsum[5-6]
-\begin{newcorol}
+\begin{ecorollary}
 假设$V(\cdot,\cdot)$为值函数，则跟据最大值原理~\ref{thm:31}，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}
+\end{ecorollary}
 
-\begin{newproof}
+\begin{eproof}
 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\}\\
@@ -216,7 +216,7 @@ V(k,z)=\max\Big\{u\big(zf(k)-y\big)+\beta \mathbb{E}V(y,z^\prime)\Big\}
 &=\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}
+\end{eproof}
 
 
 
@@ -237,13 +237,13 @@ This is one example of the custom environment, the key word is given by the opti
 
 
 \lipsum[6]
-\begin{newdef}[Contraction mapping]
+\begin{edefinition}[Contraction mapping]
 $(S,\rho)$ 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}
+\end{edefinition}
 
 \begin{remark}
 \begin{enumerate}