事件：'message'

¥Event: 'message'

• message <Object> 解析的 JSON 对象或原始值。

  ¥message <Object> A parsed JSON object or primitive value.

• sendHandle <Handle> | <undefined> undefined 或 net.Socket、net.Server 或 dgram.Socket 对象。

  ¥sendHandle <Handle> | <undefined> undefined or a net.Socket, net.Server, or dgram.Socket object.

当子进程使用 process.send() 发送消息时会触发 'message' 事件。

¥The 'message' event is triggered when a child process uses process.send() to send messages.

消息经过序列化和解析。结果消息可能与最初发送的消息不同。

¥The message goes through serialization and parsing. The resulting message might not be the same as what is originally sent.

如果在生成子进程时将 serialization 选项设置为 'advanced'，则 message 参数可以包含 JSON 无法表示的数据。有关详细信息，请参阅 高级序列化。

¥If the serialization option was set to 'advanced' used when spawning the child process, the message argument can contain data that JSON is not able to represent. See Advanced serialization for more details.