我想在所有部分中將 parindent 設為 2mm，在所有小節中將 parindent 設為 0mm。有沒有辦法做到這一點 ？
謝謝拉伊
\documentclass{article}
\begin{document}
\section{Section1}
Lorem ipsum dolor sit amet, consectetur adipiscing elit.Etiam placerat porta massa eu malesuada.
This text has a space before it. Integer egestas venenatis ipsum, et interdum nulla sagittis sed.
\subsection{Subsection1}
Fusce egestas ultricies turpis eget fermentum.
I want this text alligned. Maecenas sed scelerisque arcu.
\end{document}
答案1
段落應始終縮排（標題後的第一段可能例外）或從不縮排（並且應在每個段落前面添加一些垂直空格）；第二種樣式可用於簡短的文檔，例如信件。
混合縮排和非縮排段落會讓讀者感到困惑；這是我不推薦的。此外，2mm 的縮排也太小了。
您可以輕鬆地做您想做的事情。拜託，別這樣。
\documentclass{article}
\usepackage{indentfirst}
\let\LaTeXsection\section
\let\LaTeXsubsection\subsection
\def\section{\setlength{\parindent}{2mm}\LaTeXsection}
\def\subsection{\setlength{\parindent}{0mm}\LaTeXsubsection}
\begin{document}
\section{Section1}
Lorem ipsum dolor sit amet, consectetur adipiscing elit.Etiam placerat porta massa eu malesuada.
This text has a space before it. Integer egestas venenatis ipsum, et interdum nulla sagittis sed.
\subsection{Subsection1}
Fusce egestas ultricies turpis eget fermentum.
I want this text alligned. Maecenas sed scelerisque arcu.
\section{Section1}
Lorem ipsum dolor sit amet, consectetur adipiscing elit.Etiam placerat porta massa eu malesuada.
This text has a space before it. Integer egestas venenatis ipsum, et interdum nulla sagittis sed.
\subsection{Subsection1}
Fusce egestas ultricies turpis eget fermentum.
I want this text alligned. Maecenas sed scelerisque arcu.
\end{document}
