但是，如果您拥有两个没有上下级关系的元素，而且它们在树形结构中不是同一层次，那么它们的事件引发序列就是不同的。

However, if you have two elements where there is no direct parent-child relationship and they do not lie on the same level in the tree structure, their event firing sequence is not fixed.

youdao

但是，如果您拥有两个没有上下级关系的元素，而且它们在树形结构中不是同一层次，那么它们的事件引发序列就是不同的。

However, if you have two elements where there is no direct parent-child relationship and they do not lie on the same level in the tree structure, their event firing sequence is not fixed.

youdao