Similarly, the ChannelOutput interface consists of a single method called write(Object o).

类似地，ChannelOutput 接口也只有一个方法，叫作 write(Object o)。

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BlackHoleChannel implements the ChannelOutput interface and contains an empty write method.

BlackHoleChannel实现ChannelOut put接口，包含一个空的write方法。

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A process that calls this method on an object implementing the ChannelOutput interface will block until the object is accepted by the channel.

如果进程调用一个实现ChannelOut put接口的对象的这个方法，进程也会阻塞，直到通道接受对象。

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