Describes how to provide for multiple shapes where the return sequence is known.

描述如何为已知传回序列情况下的多个图案做准备。

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This will return the last item in the IObservable sequence.

这会返回IObservable序列的最后一项。

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This will return the last item in the IObservable sequence.

这会返回IObservable序列的最后一项。

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