与属性一样，最简单的方法是实现一个简单的数据接收器。
As with properties, the simplest way is for a simple data receiver.
另一种方法是建立多个数据接收器动作，它们各自对应一个参数。
The other approach is to have several data receiver actions correspond to each possible argument.
该系统包括一对设备——光学数据发送器和接收器。
The system consists of a device pair - optical data sender and receiver.
返回与当前接收器关联的信道的信道数据。
Returns the channel data for the channel that the current sink is associated with.
返回与当前接收器关联的信道的信道数据。
Returns the channel data for the channel that the current sink is associated with.
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