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$(this).find(".pic").addClass("active").siblings.find(".pic").removeClass("active");
When you click on li, find the .pic in li and add style and remove other ones that are not clicked. Is there anything wrong with doing this?
业精于勤，荒于嬉;行成于思，毁于随。
siblings 没加括号
看来楼主对于jquery并没有使用过于深刻，
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![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
siblings 没加括号
看来楼主对于jquery并没有使用过于深刻，