正确答案。
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>挑战题</title>
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js" type="text/javascript"></script>
<style>
div {
background-color: gray;
width: 20px;
height: 20px;
}
</style>
</head>
<body>
<div></div>
<input type="button" id="slideL" value="l"/>
<input type="button" id="slideR" value="r"/>
</body>
<script type="text/javascript">
$(function () {
var di=parseInt($("div").css("margin-left"));
$("#slideL").bind("click", function () {
console.log($(this).css("margin-left"));
$("div").animate({
"margin-left": di-=50
}, 400);
});
$("#slideR").bind("click", function () {
$("div").animate({
"margin-left": di+=50
}, 400);
});
}
)
</script>大家互相学习
