测试通过点击在时间轴播放按钮。

Test it by hitting the play button at the timeline.

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如果一个时间轴已经在播放了，它会被立即停止。

If a timeline is currently playing it will be immediately stopped when calling this method.

youdao

如果一个时间轴已经在播放了，它会被立即停止。

If a timeline is currently playing it will be immediately stopped when calling this method.

youdao