<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.top{
width: 50px;
height: 50px;
position: absolute;
background-color: red;
}
</style>
<script>
window.onload = function () {
var box = document.getElementsByClassName("top")[0];
document.onmousemove = function (ev) {
var ev = ev||window.event;
var scrollleft = document.documentElement.scrollLeft || document.body.scrollLeft;
var scrolltop = document.documentElement.scrollTop || document.body.scrollTop;
box.style.left = ev.clientX +"px";
box.style.top = ev.clientY + "px";
}
}
</script>
</head>
<body>
<div class="top"></div>
</body>
</html>
JavaScript實現div鼠標跟隨
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