process.disconnect()

如果 Node.js 进程是使用 IPC 通道衍生（参见子进程和集群文档），则 process.disconnect() 方法将关闭通往父进程的 IPC 通道，一旦没有其他连接使其保持活动状态，则允许子进程正常退出。

调用 process.disconnect() 的效果和从父进程调用 ChildProcess.disconnect() 是一样的。

如果 Node.js 进程不是使用 IPC 通道衍生，则 process.disconnect() 将是 undefined。

If the Node.js process is spawned with an IPC channel (see the Child Process and Cluster documentation), the process.disconnect() method will close the IPC channel to the parent process, allowing the child process to exit gracefully once there are no other connections keeping it alive.

The effect of calling process.disconnect() is the same as calling ChildProcess.disconnect() from the parent process.

If the Node.js process was not spawned with an IPC channel, process.disconnect() will be undefined.