代码

\documentclass[a4paper,12pt]{article}
\begin{document}
\title{This is a Test Paper}
\newcommand*{\affaddr}[1]{#1}
\newcommand*{\affmark}[1][*]{\textsuperscript{#1}}
\newcommand*{\email}[1]{\texttt{#1}}
\author{
Author A\affmark[1,] \affmark[2], Author B\affmark[2], Author C\affmark[2], Author D\affmark[2]\\
\affaddr{\affmark[1]Department of A}\\
\affaddr{\affmark[2]Department of B}\\
\email{\{a, b, c, d\}@tju.edu.cn}
}
\maketitle
\end{document}

结果