                        課程
                    
                        /前端開發(fā)
                        
                            /jQuery
                        
                        /jQuery基礎課程

哪里錯了啊，大神指教指教。哭哭

<!DOCTYPE html>
<html>
??? <head>
??????? <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
???????? <script src="http://libs.baidu.com/jquery/1.9.0/jquery.js" type="text/javascript"></script>
??????? <title>jQuery動畫特效</title>
??? <style type="text/css">
??????? #haha{
??? position:absolute;
??? left:200px;
??? top:50px;
??? width:80px;
??? height:80px;
??? border: solid 1px #ccc;
??? margin: 0px 8px;
??? background-color: Red;
??? color:White;
??? vertical-align:middle}
??? </style>
??? </head>
??? <body>
??????? <input id="button1" type="button" value="左移" >
???????? <input id="button2" type="button" value="右移">
???????? <div id="haha"></div>
???????? <span></span>
???????? <script type="text/javascript">
??????????? $("#button1").bind("click", function () {
??????????????? $("#haha").animate({
??????????????????? left:"-=50px"
??????????????? }, 3000, function (){
??????????????????????? $("span").html("執(zhí)行左移完成!")
??????????????????? })
???????????? });
????????????? $("#button2").bind("click", function () {
??????????????? $("#haha").animate({
??????????????????? left:"+=50px"
??????????????? }, 3000, function (){
??????????????????????? $("span").html("執(zhí)行右移完成!")
??????????????????? })
???????????? });
??? </body>
</html>