摘要: <script> var father = document.querySelector('.father') // mouseover事件,鼠标经过father会触发,鼠标经过子盒子son还会触发。会冒泡。 father.addEventListener('mouseover', function 阅读全文
posted @ 2021-10-07 14:14 丸筱 阅读(89) 评论(0) 推荐(0)