>> refs.bib中添加:
@article{einstein1905,
  author  = {Einstein, Albert},
  title   = {On the Electrodynamics of Moving Bodies},
  journal = {Annalen der Physik},
  year    = {1905},
  volume  = {17},
  pages   = {891--921},
}

@book{knuth1984,
  author    = {Donald E. Knuth},
  title     = {The TeXbook},
  publisher = {Addison-Wesley},
  year      = {1984}
}


>> test.tex中添加:
% 文档类声明，用于指定文档类型，常用类包括article、report、book 等
\documentclass{article}

% 导言区，用于设置全局参数、加载宏包、定义命令等
\usepackage{graphicx} 

% 正文区，由 \begin{document} 和 \end{document} 包裹，包含文本、公式、图表等。
\begin{document}
  % 设置标题、作者等
  \title{test}
  \author{Hua Li}
  \date{October 2025}
  % 生成标题
  \maketitle
    
  Fireheart shivered.~\cite{einstein1905, knuth1984} His flame-colored fur wasstill greenleaf-light~\cite{knuth1984}; it would be a few moons before it was thick enough to keep out cold like this.

  \bibliographystyle{unsrt}   % 参考文献样式
  \bibliography{refs}

\end{document}