$(??) ??
$(selector) action() ?(???)
?: $(div) hide()
????? ?? ??? ????: hide(hide),
show(display )
?? ??? ???? ????? ??? ? ? ????
![[? ?????] Node.js ?? ??](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
