> For the complete documentation index, see [llms.txt](https://3440217568.gitbook.io/rxswift/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://3440217568.gitbook.io/rxswift/decision_tree/materialize.md).

# materialize

**将序列产生的事件，转换成元素**

![](/files/-MWlwRF2ncvb7ckl_4Z7)

通常，一个有限的 `Observable` 将产生零个或者多个 `onNext` 事件，然后产生一个 `onCompleted` 或者 `onError` 事件。

**materialize** 操作符将 `Observable` 产生的这些事件全部转换成元素，然后发送出来。


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