鼠标拖拽效果
image.png
代码实现
<!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>
#box{
width: 400px;
height: 400px;
background-color: antiquewhite;
position: absolute;
}
</style>
</head>
<body>
<div id="box">
<img width="400px" height="400px" src="./imags/ea37db31252a8e473b12e0ee890bfa3.jpg"
</div>
<script>
let box = document.querySelector("#box")
box.onmousedown = function(e) {
let ox = e.offsetX
let oy = e.offsetY
document.onmousemove = function(e2) {
let cx = e2.clientX
let cy = e2.clientY
let dx = cx - ox
let dy = cy - oy
box.style.left = dx + "px"
box.style.top = dy + "px"
}
}
document.onmouseup = function( ){
document.onmousemove = null;
}
</script>
</body>
</html>
#代码实现
```html
<!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>
#box{
width: 400px;
height: 400px;
background-color: antiquewhite;
position: absolute;
background-size: cover;
background-image: url('./imags/ea37db31252a8e473b12e0ee890bfa3.jpg');
}
</style>
</head>
<body>
<div id="box">
</div>
<script>
let box = document.querySelector("#box")
box.onmousedown = function(e) {
let ox = e.offsetX
let oy = e.offsetY
document.onmousemove = function(e2) {
let cx = e2.clientX
let cy = e2.clientY
let dx = cx - ox
let dy = cy - oy
box.style.left = dx + "px"
box.style.top = dy + "px"
}
}
document.onmouseup = function( ){
document.onmousemove = null;
}
</script>
</body>
</html>
#疑问
照片加在div标签内拖拽为什么有残影？
第二个加在了box内无残影，为ai查询结果。