Chapters and Customized Chapters #

\chapter*{Name of the Chapter}
\section*{Name of the Section}
Both will not be numbered and displayed in the table of contents.

\secnumdepth % Controls the depth of section numbering.
\tocdepth % Controls the depth of section inclusion in the table of contents.
Can be modified in the preamble.

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\usepackage[heading = true]{ctex}
\ctexset{section = {optional = value, optional = value ...}, subsection = {}, ...}
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\CTEXsetup[optional = value, optional = value, ...]{chapter, section, subsection, ...}
This is the form of setting. Some optional values and their corresponding values are as follows (for more, please refer to Chapter 8 of the ctex.pdf documentation).

\documentclass[]{article}
\usepackage[heading=true]{ctex}% Be sure to set heading to true
\usepackage[left = 30mm,right = 30mm]{geometry}
\newCJKfontfamily\qingsong{FZQKBYSJW--GB1-0}
\ctexset{section={name={第,节}, titleformat = {\qingsong}}}
\begin{document}
\section{锦瑟无端五十弦}
\section{一弦一柱思华年}
\section{庄生晓梦迷蝴蝶}
\section{望帝春深托杜鹃}
\end{document}

For specific usage, please refer to page 18 of the ctex package.
\ctexset{section = {name = {第,回}, titleformat = {\mysection}}}% Customize your own mysection type
\newcommand{\mysection}[1]{Specific appearance of mysection}

\documentclass[]{article}
\usepackage[heading = true]{ctex}
% Be sure to avoid manual line breaks in settings!!!!!
\ctexset{section = {name = {第,回}, titleformat = {\mysection}, nameformat = {\qingsong\Huge}, numberformat = {\Huge}},}% Customize your own mysection type
\newcommand{\mysection}[1]{\Huge\qingsong #1}
% Keep each setting separate as much as possible.
\ctexset{subsection = {name = {第,项}, titleformat = {\mysubsection}, nameformat = {\large}}}
\newcommand{\mysubsection}[1]{\large\qingsong #1}

\usepackage{anyfontsize}
\usepackage{fontspec}
\newCJKfontfamily\qingsong{FZQKBYSJW--GB1-0}
\begin{document}
\section{我试试}
\subsection{试试就试试}
试试就试试
\end{document}