让我们通过该方法启动一个背景为白色的带指针时钟。

Let's start an analog clock with a wheat background using this method.

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时钟时间是自该进程启动后的“时钟嘀嗒”数。

The clock time is the number of "clock ticks" since the process started.

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最后，启动myobservable时钟，查看如清单6所示的输出。

Finally, start MyObservable's clock to see output like that in Listing 6.

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