process.channel

• 类型: <Object>

如果 Node.js 进程是通过 IPC 通道启动的（参见 子进程 文档），process.channel 属性是对该 IPC 通道的引用。如果不存在 IPC 通道，则该属性为 undefined。

【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.】