Finding an element based on its ID, element type, or CSS class name is very useful, but what if you want to find an element based on its position in the DOM tree.

根据ID、元素类型或CSS类名查找元素非常有用，但如何根据元素在 DOM 树中的位置执行查找呢？

youdao

Finding an element based on its ID, element type, or CSS class name is very useful, but what if you want to find an element based on its position in the DOM tree.

根据ID、元素类型或CSS类名查找元素非常有用，但如何根据元素在 DOM 树中的位置执行查找呢？

youdao