有时候需要在传播异常之前进行一些清理工作。

Sometimes it is necessary to do some amount of cleanup before propagating the exception.

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如果你不等待一个任务，传播异常，或访问例外属性，例外的是升级根据。

If you do not wait on a task that propagates an exception, or access its exception property, the exception is escalated according to the.

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如果执行了此操作，并且活动再次失败，则该异常会传播到该流程的错误处理程序，并且该活动不会再停止。

If this is done and the activity fails again, the exception is propagated to the fault handling of the process and the activity is not stopped again.

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