- mousemove只要我们鼠标移动1px 就会触发这个事件
- 核心原理: 每次鼠标移动,我们都会获得最新的鼠标坐标, 把这个x和y坐标做为图片的top和left 值就可以移动图片
- 注意要给left 和top 添加px 单位
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
img {
position: absolute;
top: 2px;
}
</style>
</head>
<body>
<img src="https://pic.zeyiwl.cn/yunimg/20220522111213.gif" alt="">
<script>
var pic = document.querySelector('img');
document.addEventListener('mousemove', function (e) {
var x = e.pageX;
var y = e.pageY;
console.log('x坐标是' + x, 'y坐标是' + y);
pic.style.left = x - 50 + 'px';
pic.style.top = y - 40 + 'px';
});
</script>
</body>
</html>