<input type="text" name="" id="name">
<script type="text/javascript">
$(function(){
$(' #name').change(function(){
console.log($(this))
$('this').css('BackgroundColor','red');
})
})
</script>
? ???? ????> $(this)? ??? ??? ? ??? ????
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![[? ?????] Node.js ?? ??](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
