如果您需要执行与使用者介面互动的背景执行绪，。

If you need to run background threads that interact with the user interface, the.

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背景工作执行绪通常是用来完成不需要使用者输入的工作，例如重新计算。

Worker threads are commonly used to complete tasks, such as recalculation, that do not require user input.

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启用与使用者介面互动的背景工作，透过使用者介面执行绪上引发的事件来沟通。

Enables background tasks that interact with the user interface, communicating via events raised on the user-interface thread.

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