代码语言：javascript复制
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
*{
margin: 0;
padding: 0;
}
.father{
width: 300px;
height: 300px;
background: red;
}
.son{
width: 150px;
height: 150px;
background: blue;
}
</style>
</head>
<body>
<div class="father">
<div class="son"></div>
</div>
<script type="text/javascript">
/*
1.onmouseover和onmouseenter的区别
onmouseover移入到子元素,父元素的移入事件也会被触发
onmouseenter移入到子元素,父元素的移入事件不会被触发
*/
/*
2.onmouseout和onmouseleave的区别
onmouseout移出到子元素,父元素的移入事件也会被触发
onmouseleave移出到子元素,父元素的移入事件不会被触发
*/
let oFDiv = document.querySelector(".father");
let oSDiv = document.querySelector(".son");
/*oFDiv.οnmοuseοver=function()
{
console.log("father");
}
oSDiv.οnmοuseοver=function()
{
console.log("666");
}*/
/* oFDiv.onmouseenter = function () {
console.log("father");
}
oSDiv.onmouseenter = function () {
console.log("son");
}*/
/*oFDiv.οnmοuseleave=function()
{
console.log("father");
}
oSDiv.οnmοuseleave=function()
{
console.log("son");
}*/
</script>
</body>
</html>
