获取流程实例的取消事件处理程序。

Get the cancellation event handler of the process instance.

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这个实例接收、取消，并获得客户订单的状态，由本系列第一部分中所开发的订单方案所表示。

This is an example service that accepts, cancels, and gets the status of a customer order, represented by the order schema developed in Part One of this series.

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在无法纠正问题的情况下，应取消该实例的配置并从头开始。

In case you were unable to correct it, unconfigure this instance and start from the beginning.

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