为什么这样写点击事件会不起作用？不知道哪里错了，求大神帮忙，拜谢了！！！

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title></title>
		<style>
			*{margin:0;padding:0;text-decoration:none;}
			body{padding:20px}
			#container{width:600px;height:400px;border:3px solid #333;overflow:hidden;position:relative;margin:0 auto;}
			#list{width:4200px;height:400px;position:absolute;z-index:1;}
			#list img{float:left;}
			#buttons{position:absolute;width:100px;height:10px;bottom:20px;left:250px;z-index:2;}
			#buttons span{cursor:pointer;display:block;float:left;width:10px;height:10px;border:1px solid #FFF;border-radius:50%;background:#333;margin-right:5px;}
			.arrow{position:absolute;display:none;width:40px;height:40px;line-height:40px;z-index:2;font-size:36px;text-align:center;font-weight:bold;top:180px;background-color:rgba(0,0,0,.3);color:#FFF;}
			#prev{left:20px;}
			#next{right:20px;}
			#container:hover .arrow{display:block;}
			.arrow:hover{background-color:rgba(0,0,0,.7);}
		</style>
		<script>
			window.onload = function(){
				var container = document.getElementById('container');
				var list      = document.getElementById('list');
				var buttons   = document.getElementById('buttons').getElementsByTagName('span');
				var prev      = document.getElementById('prev');
				var next      = document.getElementById('next');
				var index=1;
				
				next.onclick= function(){
					list.style.left=parseInt(list.style.left)-600+'px';
				}
				prev.onclick=function(){
					list.style.left=parseInt(list.style.left)+600+'px';
				}
			}
		</script>
	</head>
	<body>
		<div id="container">
			<div id="list" style="left:-600px">
				<img src="img/5.jpg" alt="" title="">
				<img src="img/1.jpg" alt="" title="">
				<img src="img/2.jpg" alt="" title="">
				<img src="img/3.jpg" alt="" title="">
				<img src="img/4.jpg" alt="" title="">
				<img src="img/5.jpg" alt="" title="">
				<img src="img/1.jpg" alt="" title="">
			</div>
			<div id="buttons">
				<span index="1" class="on"></span>
				<span index="2" class=""></span>
				<span index="3" class=""></span>
				<span index="4" class=""></span>
				<span index="5" class=""></span>	
			</div>
			<a href="#" id="prev" class="arrow"><</a>
			<a href="#" id="next" class="arrow">></a>
		</div>
	</body>
</html>

慕数据5775487

浏览 1434回答 1

1回答

o_n

#list img{float:left;}这个删了试试，给图片一个width：600px；按左右就能跳图了

0 0

随时随地看视频慕课网APP