答案1
通过 获得的这个布局是否titlesec
适合您?
\documentclass[11pt]{report}
\usepackage[showframe]{geometry}
\usepackage[noindentafter]{titlesec}
\usepackage{lipsum}
\titleformat{\chapter}{\bfseries\LARGE\filcenter}{\MakeUppercase{\chaptername}\kern 1pt·%
\thechapter}{1em}{}
\titlespacing{\chapter}{0pt}{2\baselineskip}{4\baselineskip}
\titleformat{\section}{\bfseries\Huge}{\arabic{section}}{0.5em}{\uppercase}[\vskip 1.5em\titlerule]
\titlespacing{\section}{0pt}{2\baselineskip}{4\baselineskip}
\begin{document}
\chapter{}
\section{Introduction}
\lipsum[1]
\end{document}