html图片拖放

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8"> 
<title>图片拖放</title>
<script src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>
<style type="text/css">
#div1 {width:500px;height:800px;border:1px solid #aaaaaa;}
#div2 {width:500px;height:800px;border:1px solid #aaaaaa;}

</style>
<script>
    // 图片被拖拽起来还没放下时持续触发
function allowDrop(ev)
{    
    ev.preventDefault();
}

// 图片被拖拽时触发一次
function drag(ev)
{
    ev.dataTransfer.setData("Text",ev.target.id);
}

//放下图片时触发
function drop(ev)
{
    ev.preventDefault();
    var data=ev.dataTransfer.getData("Text");
    ev.target.appendChild(document.getElementById(data));
}
</script>


</head>
<body>

<div id="div1" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<br>
<div id="div2" ondrop="drop(event)" ondragover="allowDrop(event)">
<img id="drag1" src="./images/download.jpg" draggable="true" ondragstart="drag(event)" width="500" height="500">
</div>


</body>
</html>
原文地址:https://www.cnblogs.com/junyi-bk/p/11327423.html