上代码，上效果：
代码语言：javascript复制<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style type="text/css">
* {
margin: 0;
padding: 0;
}
#wrapper {
position: absolute;
bottom: 0;
text-align: center;
width: 100%;
}
#wrapper>img {
border-radius: 50%;
}
</style>
</head>
<body>
<div id="wrapper">
<img src="https://waibi.oss-cn-chengdu.aliyuncs.com/2020-06-01/head.jpg" width="64">
<img src="https://waibi.oss-cn-chengdu.aliyuncs.com/2020-06-01/head.jpg" width="64">
<img src="https://waibi.oss-cn-chengdu.aliyuncs.com/2020-06-01/head.jpg" width="64">
<img src="https://waibi.oss-cn-chengdu.aliyuncs.com/2020-06-01/head.jpg" width="64">
<img src="https://waibi.oss-cn-chengdu.aliyuncs.com/2020-06-01/head.jpg" width="64">
</div>
<script>
window.onload = function () {
document.onmousemove = function (ev) {
var oevent = ev || event;
var aimg = document.getElementsByTagName('img');
var odiv = document.getElementById('wrapper');
for (var i = 0; i < aimg.length; i ) {
var x = aimg[i].offsetLeft aimg[i].offsetWidth / 2;
var y = aimg[i].offsetTop odiv.offsetTop aimg[i].offsetHeight / 2;
var a = x - oevent.clientX;
var b = y - oevent.clientY;
var dis = parseInt(Math.sqrt(a * a b * b));
var scale = 1 - dis / 200;
if (scale < 0.5) {
scale = 0.5;
}
aimg[i].width = scale * 128;
}
}
}
</script>
</body>
</html>效果：
