jQuery中的事件委托方式比较丰富，就以同样的例子来说：   1、用on方法,代码如下：1$(function(){2$("#lists").on("click","li",function(event){3var target = $(event.target);4target.cs...

<img src="http://www.daqianduan.com/wp-content/uploads/2018/10/filter1.png" class="logo">.logo {transition: all 0.2s;cursor: pointer;filter: grayscale(100%);}.logo:hover {filter...