我试图在div上拖放图像.图像不会被拖到div上,并给出以下错误
Uncaught TypeError: Failed to execute 'appendChild' on 'Node': parameter 1 is not of type 'Node'.draganddrop.html:20 dropdraganddrop.html:26 ondrop
码
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Creativity Dashboard</title>
<!-- Required CSS -->
<link href="css/movingboxes.css" rel="stylesheet">
<link href="css/compare.css" rel="stylesheet">
<!--[if lt IE 9]>
<link href="css/movingboxes-ie.css" rel="stylesheet" media="screen">
<![endif]-->
<!-- Required script -->
<script src="http://code.jquery.com/jquery-1.8.0.min.js"></script>
<script src="js/jquery.movingboxes.js"></script>
<!-- Demo only -->
<link href="demo/demo.css" rel="stylesheet">
<script src="demo/demo.js"></script>
<script>
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id);
}
function drop(ev) {
ev.preventDefault();
var …