?<!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>焦點輪播圖</title>
<script?type="text/javascript">
??window.onload=function(){
???var?container=document.getElementById("container");
???var?list=document.getElementById("list");
???var?buttons=document.getElementById("buttons").document.getElementsByTagName("span");
???var?prev=document.getElementById("prev");
???var?next=document.getElementById("next");
???
???function?animate(offset){
????list.style.left=parseInt(list.style.left)+offset+"px";
????}
???next.onclick=function(){
????animate(-600);
????}
???prev.onclick=function(){
????animate(600);
????}
???}
</script>
<link?href="css/焦點輪播圖.css"?rel="stylesheet"?type="text/css">
</head>
<body>
??<div?id="container">
????<div?id="list"?style="left:?-600px;">
????????<img?src="img/5.jpg"?alt="1"/>
????????<img?src="img/1.jpg"?alt="1"/>
????????<img?src="img/2.jpg"?alt="2"/>
????????<img?src="img/3.jpg"?alt="3"/>
????????<img?src="img/4.jpg"?alt="4"/>
????????<img?src="img/5.jpg"?alt="5"/>
????????<img?src="img/1.jpg"?alt="5"/>
????</div>
????<div?id="buttons">
????????<span?index="1"?class="on"></span>
????????<span?index="2"></span>
????????<span?index="3"></span>
????????<span?index="4"></span>
????????<span?index="5"></span>
????</div>
????<a?href="javascript:;"?id="prev"?class="arrow"><</a>
????<a?href="javascript:;"?id="next"?class="arrow">></a>
</div>
??
</body>
</html>
2016-02-28
var buttons = document.getElementById('buttons').getElementsByTagName('span'); 這個是常見寫法 你好像多了個document
2015-12-02
我的也是這個問題，請問下你的解決了嗎？
2015-11-07
var?buttons=document.getElementById("buttons").document.getElementsByTagName("span"); ?你中間多寫了個document
2015-10-18
var?buttons=document.getElementById("buttons").document.getElementsByTagName("span");這個你要表達什么？不應該是
var?buttons=document.getElementById("buttons") var?span=?document.getElementsByTagName("span");如果這樣的寫至少能保證你的代碼現在沒有錯誤。