h5拖放

<div id="div1" ondrop="_drop(event)"
     ondragover="_dragover(event)"></div>
<div id="div2"><img id="drag1" src="../images/liying.jpg" draggable="true"
                    ondragstart="_dragstart(event)" width="323" height="440"/></div>
<script type="text/javascript">
    function _dragover(ev) {
        ev.preventDefault();
    }
    function _dragstart(ev) {
        ev.dataTransfer.setData("Text", ev.target.id);
    }
    function _drop(ev) {
        ev.preventDefault();
        var data = ev.dataTransfer.getData("Text");
        ev.target.appendChild(document.getElementById(data));
    }
</script>