\begin
Discover why 18 million people worldwide trust Overleaf with their work.
\begin
Discover why 18 million people worldwide trust Overleaf with their work.
\documentclass[UTF8]{ctexart}
% \newcommand{\chuhao}{\fontsize{42.2pt}{\baselineskip}\selectfont}
% \newcommand{\xiaochu}{\fontsize{36.1pt}{\baselineskip}\selectfont}
% \newcommand{\yihao}{\fontsize{26.1pt}{\baselineskip}\selectfont}
% \newcommand{\xiaoyi}{\fontsize{24.1pt}{\baselineskip}\selectfont}
% \newcommand{\erhao}{\fontsize{22.1pt}{\baselineskip}\selectfont}
% \newcommand{\xiaoer}{\fontsize{18.1pt}{\baselineskip}\selectfont}
% \newcommand{\sanhao}{\fontsize{16.1pt}{\baselineskip}\selectfont}
% \newcommand{\xiaosan}{\fontsize{15.1pt}{\baselineskip}\selectfont}
% \newcommand{\sihao}{\fontsize{14.1pt}{\baselineskip}\selectfont}
% \newcommand{\xiaosi}{\fontsize{12.1pt}{\baselineskip}\selectfont}
% \newcommand{\wuhao}{\fontsize{10.5pt}{\baselineskip}\selectfont}
% \newcommand{\xiaowu}{\fontsize{9.0pt}{\baselineskip}\selectfont}
% \newcommand{\liuhao}{\fontsize{7.5pt}{\baselineskip}\selectfont}
% \newcommand{\xiaoliu}{\fontsize{6.5pt}{\baselineskip}\selectfont}
% \newcommand{\qihao}{\fontsize{5.5pt}{\baselineskip}\selectfont}
% \newcommand{\bahao}{\fontsize{5pt}{\baselineskip}\selectfont}
\usepackage{fontspec}
\setmainfont{Times New Roman}
\usepackage{titlesec}
%section等前后间距
%\titlespacing*{\section}{0pt}{1ex plus .0ex minus .0ex}{1ex plus .0ex}
%\titlespacing*{\subsection}{0pt}{0ex plus .0ex minus .0ex}{0ex plus .0ex}
%section等字体设置和字号大小
\titleformat*{\section}{\zihao{4}\heiti}
\titleformat*{\subsection}{\zihao{-4}\kaishu}
\usepackage{tocloft}
\renewcommand{\cftsecfont}{\songti\zihao{5}} %设置目录section条目的字体
\renewcommand{\cftsubsecfont}{\songti\zihao{5}} %设置目录subsection条目的字体
\renewcommand{\cfttoctitlefont}{\heiti\zihao{-3}} % 设置了“目录”两个字的字体
% 设置打印页面 用A4纸，上、下、右各空25mm，左空30mm，
\usepackage{geometry}
\geometry{a4paper, left=3cm, top=2.5cm, right=2.5cm, bottom=2.5cm}
\title{北京化工大学中期报告}
\author{张三}
\date{\today}
\bibliographystyle{plain}
\begin{document}\songti\zihao{5} % 设置了字体字号
\setlength{\baselineskip}{18pt} % 在这里设置行间距，问题解决
\maketitle\thispagestyle{empty} % 标题页没有页眉页脚
\newpage
\pagenumbering{Roman}
\setcounter{page}{1}
\tableofcontents
\newpage
\setcounter{page}{1}
\pagenumbering{arabic}
\pagestyle{plain}
\section{论文取得的阶段性成果}
\subsection{研究背景及意义}
\subsection{研究内容}
\subsection{已完成工作}
\section{与开题报告所定的研究内容是否相符和研究进展}
\subsection{开题报告所定的研究内容}
\subsection{研究进展}
\section{继续研究的内容}
\section{存在的问题}
\section{计划完成论文的时间和预期结果}
\subsection{计划完成论文的时间}
\subsection{预期结果}
% \bibliography{bib文件名}
\end{document}