# 帖子何时被视为“已读”？

**URL:** https://meta.discourse.org/t/when-is-a-post-considered-read/245783
**Category:** Support
**Created:** [2022年十一月16日 15:53 UTC](https://meta.discourse.org/t/when-is-a-post-considered-read/245783 "2022-11-16T15:53:28Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![ganncamp](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/ganncamp/32/106199_2.png) [@ganncamp](https://meta.discourse.org/u/ganncamp)
#### Post date: [2022年十一月16日 15:53 UTC](https://meta.discourse.org/t/when-is-a-post-considered-read/245783/1 "2022-11-16T15:53:28Z")

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我正在查看 TL1 要求，其中包含“tl1 需要读取帖子”，默认值为 30。

我只是好奇，帖子是否仅仅因为我滚动过去就被标记为“已读”，还是需要屏幕上显示一定的时间（以便真正阅读）。

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### Author: ![khenmu](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/khenmu/32/108976_2.png) [@khenmu](https://meta.discourse.org/u/khenmu)
#### Post date: [2022年十一月16日 16:09 UTC](https://meta.discourse.org/t/when-is-a-post-considered-read/245783/2 "2022-11-16T16:09:50Z")

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这是我能找到的关于这个主题的最佳帖子；

> [@How does post tracking work in Discourse](https://meta.discourse.org/t/how-does-post-tracking-work-in-discourse/115790):
>
> Discourse tracks read time for every post users see on the screen. This system has evolved over the years and I find I often need to refer back to the code to figure out how this works and why it exists. This post covers the painful technical details of the current implementation. How the Discourse client tracks timing Post timing tracking is implemented in [screen-track.js.es6](https://github.com/discourse/discourse/blob/a80c1f40111d6c56da10eefea91c9baa43b9f4b5/app/assets/javascripts/discourse/lib/screen-track.js.es6). This module is responsible for tracking how long a post has been on the screen and how long the topic has been on scr…