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HTML DOM 实例练习-3.27
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实例

<!DOCTYPE html>
<html>
<head>
	<title>hello world!</title>
	<style type="text/css">
		div{width: 500px;height: 300px;margin: 50px auto;overflow: hidden;position: relative;}
		img{width: 500px;height: 300px;}
		p{width: 500px;height: 30px;color: 254,254,254;text-align: center;line-height: 30px;position: absolute;bottom: 0;z-index: 999;}
		p span{display: inline-block;width: 20px;height: 20px;text-align: center;background: rgba(254,254,254,0.5);border-radius: 50%;line-height: 20px;cursor:	pointer;}
	</style>
</head>
<body>
	<div id="photo">
		<a href=""><img src="static/images/1.jpg"></a>
		<a href=""><img src="static/images/2.jpg"></a>
		<a href=""><img src="static/images/3.jpg"></a>
		<a href=""><img src="static/images/4.jpg"></a>
		<a href=""><img src="static/images/5.jpg"></a>
		<p>
			<span onclick="change(0)">1</span>
			<span onclick="change(1)">2</span>
			<span onclick="change(2)">3</span>
			<span onclick="change(3)">4</span>
			<span onclick="change(4)">5</span>
		</p>
	</div>
	<script type="text/javascript">
		function change(num){
			var obj=document.getElementById("photo");
			var obj_a=obj.getElementsByTagName('a');
			for(var i=0;i<obj_a.length;i++){
				obj_a[i].style.display="none";
			}
			obj_a[num].style.display="block";
		}
	</script>
</body>
</html>

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Correction status：Uncorrected

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