rl.close()

rl.close() 方法会关闭 readline.Interface 实例，并放弃对 input 和 output 流的控制。 当调用时，将触发 'close' 事件。

调用 rl.close() 不会立即停止 readline.Interface 实例触发的其他事件（包括 'line'）。

The rl.close() method closes the readline.Interface instance and relinquishes control over the input and output streams. When called, the 'close' event will be emitted.

Calling rl.close() does not immediately stop other events (including 'line') from being emitted by the readline.Interface instance.