如題, 我的參考文獻風格是plain \renewcommand\bibname{Reference} \bibliographystyle{plain} \bibliography{mybib} 然後直接插入一個bib檔 bib檔的格式如下 @article{GW12, author = "J. S. Guo and C. H. Wu", title = "On n free boundary problem for a two-species weak competition system", year = "2012", journal = "J. Dyn. Diff. Equat.", volume = "24", pages = "873–895" } 我預期的效果是 [5] J. S. Guo, C. H. Wu. On n free boundary problem for a two-species weak competition system. J. Dyn. Diff. Equat., 24:873–895, 2012. 但顯示出來and的地方依然是and 如下 [5] J. S. Guo and C. H. Wu. On n free boundary problem for a two-species weak competition system. J. Dyn. Diff. Equat., 24:873–895, 2012. 請問如果希望作者之間以逗號連接, 該如何修改呢? 環境: book 編譯: xelatex