documentclass[12pt]{article}
usepackage[doublespacing]{setspace}
usepackage{textcomp}
usepackage{fancyhdr}%页眉页脚
usepackage{lastpage}%获得总页码
usepackage{amsfonts}%数学字符
usepackage{amsmath}%美国数学会
usepackage{amssymb}%黑板体和花体
usepackage{makeidx}%索引
usepackage{booktabs}
usepackage[section]{placeins}%表格浮动
usepackage{geometry}%页面格式
usepackage{graphicx}%图片
usepackage[square,sort,comma,numbers]{natbib}
geometry{a4paper,left=2.4cm,right=2.4cm,top=2.4cm,bottom=2.4cm,centering}
linespread{1} %行间距倍数
pagestyle{fancy}
lhead{Team # 1903487}
rhead{page thepage{} of pageref{LastPage}}
begin{document}
begin{abstract}
abstract
end{abstract}
begin{center}
Keywords
end{center}
key words
newpage
tableofcontents
end{document}
