拖拽 

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			.box{
				width: 200px;
				height: 200px;
				background-color: #0ff;
				position: absolute;
				left: 0;
				top:0;
			}
		</style>
	</head>
	<body>
		<div class="box"></div>
		
		<script type="text/javascript">
			var box=document.querySelector(".box");
			var e=event||window.event;
			box.onmousedown=function(e){
				var ox=e.clientX-this.offsetLeft;
				var oy=e.clientY-this.offsetTop;
				console.log(ox+" "+oy)
				document.onmousemove=function(e){
					box.style.left=e.clientX-ox+'px';
					box.style.top=e.clientY-oy+'px';
				}
				box.onmouseup=function(){
					document.onmousemove=null
				}
			}
		</script>
	</body>
</html>

　　

posted @ 2019-10-29 19:59  福超  阅读(100)  评论(0)    收藏  举报