% load lecture note class
\documentclass{easyclass}
\begin{document}
\begin{titlepage}
\university{Great University}
\courseid{CS 000}
\title{Lecture Note}
\author{Erkang}
\version{9102 Spring}
\instructor{Instructors: Dr.~Ins \textsc{Tructor1}\par
Dr.~Ins \textsc{Tructor2}, Dr.~Ins \textsc{Tructor3}\par}
\maketitle
\end{titlepage}
\tableofcontents
\chapter{Introduction to Easy Class}
\input{chap.tex}
%\bibliography{bibfile}
\end{document}