process.channel.unref()

这种方法使 IPC 通道不会保持进程的事件循环运行，并且即使通道打开也允许其完成。

【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，这是通过在 process 对象上设置 'disconnect' 和 'message' 监听器的数量来管理的。然而，这种方法可以用来明确请求某种特定的行为。

【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.】