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How to implement drag and drop events in native js (code)

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不言Original
2018-08-15 17:33:501574browse

The content of this article is about how to implement drag and drop events (code) in native js. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you. 

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style>
		.box{
			width:200px;
			height:200px;
			background-color: red;
			position: absolute;
			left:0;
			top:0;
		}
	</style>
</head>
<body>
	<p class=&#39;box&#39;></p>
	<script>
		var box = document.querySelector(&#39;.box&#39;);
		box.onmousedown = function(e){
			var event = e || window.event;
			var target = event.target || event.srcElement;
			var disX = event.clientX - target.offsetLeft;
			var disY = event.clientY - target.offsetTop;
			document.onmousemove = function(event){
				// 注意：这里要有自己的事件对象
				target.style.left = event.clientX - disX + &#39;px&#39;;
				target.style.top = event.clientY - disY + &#39;px&#39;;
				document.onmouseup = function(){
					document.onmousedown = null;
					document.onmousemove = null;
				}
			}
		}
	</script>
	
</body>
</html>

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