<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>19_事件切换</title>
</head>
<style type="text/css">
* {
margin: 0px;
}
.div1 {
position: absolute;
width: 200px;
height: 200px;
top: 50px;
left: 10px;
background: olive;
}
.div2 {
position: absolute;
width: 100px;
height: 100px;
top: 50px;
background: red;
}
.div3 {
position: absolute;
width: 200px;
height: 200px;
top: 50px;
left: 230px;
background: olive;
}
.div4 {
position: absolute;
width: 100px;
height: 100px;
top: 50px;
background: yellow;
}
.divText{
position: absolute;
top: 330px;
left: 10px;
}
</style>
<body>
<div class="divText">
区分鼠标的事件
</div>
<div class="div1">
div1.....
<div class="div2">div2....</div>
</div>
<div class="div3">
div3.....
<div class="div4">div4....</div>
</div>
<!--
区别mouseover与mouseenter?
* mouseover: 在移入子元素时也会触发, 对应mouseout
* mouseenter: 只在移入当前元素时才触发, 对应mouseleave
hover()使用的就是mouseenter()和mouseleave()
区别on('eventName', fun)与eventName(fun)
* on('eventName', fun): 通用, 但编码麻烦
* eventName(fun): 编码简单, 但有的事件没有对应的方法
-->
<script src="js/jquery-1.10.1.js" type="text/javascript"></script>
<script type="text/javascript">
$('.div1')
.mouseover(function () {
console.log('mouseover 进入')
})
.mouseout(function () {
console.log('mouseout 离开')
})
//下面这种，鼠标在div3与div4之间切换的时候是不会触发的
$('.div3')
.mouseenter(function () {
console.log('mouseenter 进入')
})
.mouseleave(function () {
console.log('mouseleave 离开')
})
</script>
</body>
</html>