[求助帖] JS 一张图片横向移动 setInterval animate

[qq_24211731]

每隔几秒钟，img就会向右移动一段距离 求大神

[天际的海浪]

<!doctype html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>页面名称</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.11.2.min.js"></script> 
<style type="text/css">
#d { 
	position: absolute;
	top: 50px;
	left: 10px;
	width: 50px;
	height: 50px;
	background-color: #ff0;
}
</style>
</head>
<body>
<div id="d"></div>
<script type="text/javascript">
setInterval(function (){
	$("#d").animate({left:"+=50px"}, 300);
},2000);
</script>
</body>
</html>