> For the complete documentation index, see [llms.txt](https://overleaf-pro.ayaka.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://overleaf-pro.ayaka.space/latex/zh-cn/zhi-shi-ku/006-can-i-choose-which-file-is-the-main-tex-file-in-a-project-on-overleaf.md).

# 我可以在 Overleaf 项目中选择哪个文件作为主 tex 文件吗？

是的，按以下步骤操作：

1. 点击 Overleaf 菜单图标（![OLmenu.png](/files/53dd3fa5f4f404ba6b4cacaba076aa9fdd911266)），位于文件列表上方。
2. 在菜单中，找到 **主文档** 选项，并将其设置为你偏好的 `.tex` 文件中：

   ![SettingMainTeX.png](/files/abb69d13616fb159dbde72046381f2604791507c)
3. 这将把该文件设置为每次你返回项目时都进行编译并预览的文件。

**注意**:

* 为确保 Overleaf 功能正常工作，我们建议将项目的主 `.tex` 文件放在项目的顶级文件夹中。例如，受影响的功能包括 [跳转到位置](/latex/zh-cn/zhi-shi-ku/022-can-t-find-jump-to-location-arrows.md), [字数统计](/latex/zh-cn/zhi-shi-ku/099-is-there-a-way-to-run-a-word-count-that-doesn-t-include-latex-commands.md) 以及类似于 [makeglossaries](/latex/zh-cn/wen-dang-jie-gou/05-glossaries.md) 等，
* 任何包含 `\documentclass` 命令的项目文件，都可以在编辑器中打开时通过选择 **重新编译** 按钮来编译。这样你就可以在不更改项目主文件设置的情况下，在一个 Overleaf 项目中编译多个文档。


---

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