关联：https://ld246.com/article/1746977623250/comment/1749034681865#comments

TODO:

• 更新笔记和帖子里的 JS 片段 https://ld246.com/article/1748934188341
  To pick up a draggable item, press the space bar. While dragging, use the arrow keys to move the item. Press space again to drop the item in its new position, or press escape to cancel.