新手自学JS，初学者有关问题像各位大侠啊
日期：2014-05-16 浏览次数：20396 次
新手自学JS，菜鸟问题像各位大侠求助啊~~！
一个不间断滚动的JS代码，如何吧body中的JS移动到head里面呢？应该怎么改动呢？还请各位大侠指点
<body>
<div id="demo" style=" overflow:hidden; width:640px; height:240px;">
<div id="demo1">
<img src="01.jpg" />
<img src="02.jpg" />
<img src="03.jpg" />
</div>
<div id="demo2"></div>
</div>
<script type="text/javascript">
var speed=30;
demo2.innerHTML=demo1.innerHTML;
function Marquee()
{
if(demo2.offsetTop-demo.scrollTop<=0)
{
demo.scrollTop-=demo1.offsetHeight;
}
else
{
demo.scrollTop++;
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function(){clearInterval(MyMar)}
demo.onmouseout=function(){setInterval(Marquee,speed)}
</script>
</body>
------解决方案--------------------
一个不间断滚动的JS代码，如何吧body中的JS移动到head里面呢？应该怎么改动呢？还请各位大侠指点
<body>
<div id="demo" style=" overflow:hidden; width:640px; height:240px;">
<div id="demo1">
<img src="01.jpg" />
<img src="02.jpg" />
<img src="03.jpg" />
</div>
<div id="demo2"></div>
</div>
<script type="text/javascript">
var speed=30;
demo2.innerHTML=demo1.innerHTML;
function Marquee()
{
if(demo2.offsetTop-demo.scrollTop<=0)
{
demo.scrollTop-=demo1.offsetHeight;
}
else
{
demo.scrollTop++;
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function(){clearInterval(MyMar)}
demo.onmouseout=function(){setInterval(Marquee,speed)}
</script>
</body>
------解决方案--------------------
- HTML code
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="zh">
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<script type="text/javascript">
window.onload = function(){
var speed=30;
demo2.innerHTML=demo1.innerHTML;
function Marquee()
{
if(demo2.offsetTop-demo.scrollTop<=0)
{
demo.scrollTop-=demo1.offsetHeight;
}
else
{
demo.scrollTop++;
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function(){clearInterval(MyMar)}
demo.onmouseout=function(){setInterval(Marquee,speed)}
}
</script>
</head>
<body>
<div id="demo" style=" overflow:hidden; width:640px; height:240px;">
<div id="demo1">
<img src="01.jpg" />
<img src="02.jpg" />
<img src="03.jpg" />
</div>
<div id="demo2"></div>
</div>
</body>
</html>
------解决方案--------------------
- HTML code
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="zh">
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<script type="text/javascript">
window.onload = function(){
var speed=30;
demo2.innerHTML=demo1.innerHTML;
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function(){clearInterval(MyMar)}
demo.onmouseout=function(){setInterval(Marquee,speed)}
}
function Marquee()
{
if(demo2.offsetTop-demo.scrollTop<=0)
{
demo.scrollTop-=demo1.offsetHeight;
}
else
{
demo.scrollTop++;
}
}
</script>
</head>
<body>
<div id="demo" style=" overflow:hidden; width:640px; height:240px;">
<div id="demo1">
<img src="01.jpg" />
<img src="02.jpg" />
<img src="03.jpg" />
</div>
<div id="demo2"></div>
</div>
</body>
</html>
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