process.channel.unref()

此方法使 IPC 通道不会保持进程的事件循环运行，并且即使在通道打开时也让它完成。

¥This method makes the IPC channel not keep the event loop of the process running, and lets it finish even while the channel is open.

通常，这是通过 process 对象上的 'disconnect' 和 'message' 监听器的数量来管理的。但是，此方法可用于显式请求特定行为。

¥Typically, this is managed through the number of 'disconnect' and 'message' listeners on the process object. However, this method can be used to explicitly request a specific behavior.