Jquery开灯关灯效果

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>无标题文档</title>

<script src="file:///E|/课程视频/0103Jquery/Jquery/jquery-1.11.2.min.js"></script>

<style type="text/css">

#zz{width:100%; height:100%; position:absolute; left:0px; top:0px; background-color:black; z-index:5;filter:alpha(opacity=50);

-moz-opacity:0.5;

-khtml-opacity: 0.5;

opacity: 0.5;}

</style>

</head>

<body>

<div id="shang" style="position:absolute; z-index:10; left:100px; top:100px;">

<input type="button" value="关灯" id="guan" />

<input type="button" value="开灯" id="kai" />

</div>

</body>

<script type="text/javascript">

$("#guan").click(function(){

        var str = "<div id='zz'></div>";

        $("body").append(str);

        $(this).css("display","none");

        $("#kai").css("display","block");

    })

$("#kai").click(function(){

        $("#zz").remove();

        $("#guan").css("display","block");

        $(this).css("display","none");

    })

</script>

</html>
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Jquery开灯关灯效果

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