> For the complete documentation index, see [llms.txt](https://rainbowmango.gitbook.io/go/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://rainbowmango.gitbook.io/go/di-si-zhang-nei-cun-guan-li/4.2-la-ji-hui-shou-yuan-li.md).

# 4.2 垃圾回收原理