> For the complete documentation index, see [llms.txt](https://easonwang.gitbook.io/class/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://easonwang.gitbook.io/class/fs-wen-jian-cao-zuo.md).

# fs(文件操作)

為File System縮寫，Node.js中操作檔案使用之核心模組，此模組提供的大多數函式均有異步與同步的版本

ex:

```
fs.access(path[, mode], callback)
fs.accessSync(path[, mode])
```