事件：'message'

¥Event: 'message'

• worker <cluster.Worker>

• message <Object>

• handle <undefined> | <Object>

当集群主进程接收到来自任何工作进程的消息时触发。

¥Emitted when the cluster primary receives a message from any worker.

参见 child_process 事件：'message'。

¥See child_process event: 'message'.