> For the complete documentation index, see [llms.txt](https://docs.ultiland.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ultiland.io/zh-cn/event/pre-sale.md).

# 预售

<figure><img src="https://431556320-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEsj6ss4FYcZ6L6o2yuHa%2Fuploads%2FjkJ4T1wDvdF5ZDBPaO1z%2F%E9%A2%84%E5%94%AE.png?alt=media&amp;token=bd3f4fa7-1e8a-4072-8aec-78fe864eff3a" alt=""><figcaption></figcaption></figure>