\documentclass[cn,11pt,onecol,color=black]{elegantbook}
% \usepackage{titlesec}
\usepackage{float}
\makeatletter
\@addtoreset{chapter}{part}
\makeatother
\renewcommand{\thetable}{\arabic{table}}
\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{3.09}
\extrainfo{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}
\part{1部分}
\chapter{章1}
\chapter{章2}
\part{2部分}
\chapter{章3}
\chapter{章1}
\end{document}