latex 模板

\documentclass{article}
\usepackage{amssymb}
\usepackage{mathrsfs}
\usepackage{ctex} %用于插入中文字符
\usepackage{float}
\usepackage[version=3]{mhchem} % Package for chemical equation typesetting
\usepackage{siunitx} % Provides the \SI{}{} and \si{} command for typesetting SI units
\usepackage[colorlinks,linkcolor=red,anchorcolor=blue,citecolor=green]{hyperref}
\usepackage{graphicx} % Required for the inclusion of images
\usepackage{natbib} % Required to change bibliography style to APA
\usepackage{amsmath} % Required for some math elements
\usepackage{indentfirst}

\setlength\parindent{2em} % Removes all indentation from paragraphs

\renewcommand{\labelenumi}{\alph{enumi}.} % Make numbering in the enumerate environment by letter rather than number (e.g. section 6)

%\usepackage{times} % Uncomment to use the Times New Roman font

%————————————————————————————————————————————
% DOCUMENT INFORMATION
%————————————————————————————————————————————

\title{Weekly Report} % Title

\author{Xu Tang} % Author name

\date{\today} % Date for the report

\begin{document}

\maketitle % Insert the title, author and date

你好

\end{document}