Windows8：为什么使用本地通知
我最近开始了 Win8 Metro 应用程序（javascript）的开发。对于通知，WNS 通知对于创建动态磁贴的作用显而易见。
然而，我不清楚本地通知的用例。我有以下两个问题：
假设本地通知仅对在后台运行的应用程序有意义（例如当其他应用程序运行时或系统锁定时）是否正确？
如果上述情况不正确，请建议一些本地通知何时有用的示例。
问候
CGere
I started off on the Win8 metro app (javascript) development recently. For notifications, it is clear how the WNS notifications will be useful for creating live tiles.
However the use case for local notifications is not clear to me. I have these two questions:
is it correct to assume local notifications make sense only for apps that would run in the background e.g. when other apps are running or when the system is locked?
if the above is not true, then kindly suggest some examples of when local notifications will be useful.
regards
CGere
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本地通知对于更新开始屏幕上的磁贴非常有用，这些磁贴在您的应用程序关闭/暂停后仍然存在。例如，当您的应用程序关闭时，您可能希望更新磁贴并提供一些上下文，可能是他们所在游戏的最后一个级别的图像等。
当您的应用程序进入后台时，它会有一小段时间暂停，之后您的应用程序将不再运行，因此无法更新磁贴。不过，您可以创建一个后台任务来在事件上运行/计时器来完成一些工作（例如更新您的图块）。
Local notifications are useful to update your tile on the start screen that persist after your app was closed/suspended. For example you might want to update the tile when your app closes with some context, perhaps an image from the last level of the game they were on or such.
When your app goes to the background it has a short period of time to suspend after which your app will no longer be running and thus unable o update the tile. You can however create a background task to run on an event/timer to do some work (such as update your tile).