一定要吃透jQuery API
<!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动画移动效果</title>
<style type="text/css">
span{
position:absolute;
width:80px;
height:80px;
border: solid 1px #ccc;
margin:100px 100px;
background-color: Red;
vertical-align:middle
}
</style>
</head>
<body>
<h3>动画移动</h3>
<span></span>
<input type="button" id="btnleft" value="左移"><br/>
<input type="button" id="btnright" value="右移">
<div id="yd">执行开始</div>
<script type="text/javascript">
$(function(){
$("#btnleft").bind("click",function(){
$("span").animate({
left:"-=50px"
},3000,function(){
$("#yd").html("左移50px");
})
});
$("#btnright").bind("click",function(){
$("span").animate({
left:"+=50px"
},3000,function(){
$("#yd").html("右移50px");
})
});
});
</script>
</body>
</html>这里有两个问题：1记得开头引入Jquery库，2去查看API左移右移都是用left来实现
