<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<style>
*{
padding: 0;
margin: 0;
}
#box {
width: 100px;
height: 100px;
background: blue;
position: absolute;
}
</style>
<title>拖拽</title>
<script>
var oBox=null;
var disX=0;
var disY=0;
window.onload=function(){
oBox=document.getElementById('box');
oBox.onmousedown=fnDown;
};
//鼠标按下事件
function fnDown(ev){
var oEvent = ev||event;
disX = oEvent.clientX - oBox.offsetLeft;
disY = oEvent.clientY - oBox.offsetTop;
document.onmousemove = fnMove;
document.onmouseup = fnUp;
}
//鼠标移动事件
function fnMove(ev){
var oEvent=ev||event;
oBox.style.left = oEvent.clientX - disX + 'px';
oBox.style.top = oEvent.clientY - disY + 'px';
}
//鼠标抬起事件
function fnUp(){
document.onmousemove = null;
document.onmouseup = null;
}
</script>
</head>
<body>
<div id="box"></div>
</body>
</html>div 拖拽移动
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转载自blog.csdn.net/guohao326/article/details/87934353
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