process.channel

• <Object>

如果 Node.js 进程是使用 IPC 通道衍生（参见子进程文档），则 process.channel 属性是对 IPC 通道的引用。 如果不存在 IPC 通道，则此属性为 undefined。

• <Object>

If the Node.js process was spawned with an IPC channel (see the Child Process documentation), the process.channel property is a reference to the IPC channel. If no IPC channel exists, this property is undefined.