LaTeX 计数器：如何在每个 \subsubsection 后重置计数器

\documentclass{article}\ \newcounter{testcounter}\ \setcounter{testcounter}{1}\ \begin{document}\ \section{Section 1}\ \subsubsection{Subsubsection 1.\arabic{testcounter}}\ Some text.\ \stepcounter{testcounter}\ \subsubsection{Subsubsection 1.\arabic{testcounter}}\ Some text.\ \stepcounter{testcounter}\ \subsubsection{Subsubsection 1.\arabic{testcounter}}\ Some text.\ \section{Section 2}\ \subsubsection{Subsubsection 2.\arabic{testcounter}}\ Some text.\ \stepcounter{testcounter}\ \subsubsection{Subsubsection 2.\arabic{testcounter}}\ Some text.\ \setcounter{testcounter}{1} % 重置计数器 testcounter 为 1\ \subsubsection{Subsubsection 2.\arabic{testcounter}}\ Some text.\ \end{document}