光标聚集是什么意思，就大神解释下？

Question

我是小白这节不太理解求大神帮忙。

Answer 1

What does cursor gathering mean? Could you please explain it? -PHP Chinese website Q&A-What does cursor gathering mean? Could you please explain it? -PHP Chinese website Q&A

Please watch and learn.

Answer 2

点击一个元素，这个元素就会获得焦点，对应的onfocus事件就会执行；

就像文本框，点击后，会有个光标一闪一闪，就是焦点在它身上的原因，按钮也是，点击哪个按钮，焦点就在哪个按钮身上