JavaScript妙味课堂 物体平滑移动特效

<meta http-equiv="content-type" content="text/html; charset=utf-8"> <title>javascript物体平移运动特效</title> <style> #div1 {background: red url(//www.jb51.net/images/logo.gif); position:absolute; left:50px; top:50px; width:200px; height:200px;} </style> <input id="btn_start_move" type="button" value="开始运动">
[ctrl+a 全选 注:如需引入外部js需刷新才能执行]