readline.moveCursor(stream, dx, dy[, callback])

• stream <stream.Writable>
• dx <number>
• dy <number>
• callback <Function> 操作完成后调用。
• 返回: <boolean> 如果 stream 希望调用代码在继续写入额外的数据之前等待 'drain' 事件被触发，则为 false；否则为 true。

readline.moveCursor() 方法相对于它在给定的 TTY stream 中的当前位置移动光标。

• stream <stream.Writable>
• dx <number>
• dy <number>
• callback <Function> Invoked once the operation completes.
• Returns: <boolean> false if stream wishes for the calling code to wait for the 'drain' event to be emitted before continuing to write additional data; otherwise true.

The readline.moveCursor() method moves the cursor relative to its current position in a given TTY stream.