Question

怎么用Java代码使图片自行滚动浏览

Answer 1

向上滚动的代码：
<div id=demo style=overflow:hidden;height:400;width:160;background:#214984;color:#ffffff><table align=top cellpadding=0 cellspace=0 border=0><tr><td id=demo1 valign=top><img src="pic/1.jpg" width="156" height="200" /><br><img src="pic/2.jpg" width="160" height="198" /><br><img src="pic/3.jpg" width="155" height="200" /><br><img src="pic/4.jpg" width="157" height="200" /></td></tr><tr><td id=demo2 valign=top></td></tr></table></div>
<script>
var speed=30
demo2.innerHTML=demo1.innerHTML//克隆demo1为demo2
function Marquee(){
if(demo2.offsetHeight-demo.scrollTop<=0)//当滚动至demo1与demo2交界时
demo.scrollTop-=demo1.offsetHeight//demo跳到最顶端
else{
demo.scrollTop++
}
}
var MyMar=setInterval(Marquee,speed)//设置定时器
demo.onmouseover=function() {clearInterval(MyMar)}//鼠标移上时清除定时器达到滚动停止的目的
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}//鼠标移开时重设定时器
</script>

向下滚动：
<div id=demo style=overflow:hidden;height:400;width:160;background:#214984;color:#ffffff><table align=top cellpadding=0 cellspace=0 border=0><tr><td id=demo1 valign=top><img src="pic/1.jpg" width="156" height="200" /><br><img src="pic/2.jpg" width="160" height="198" /><br><img src="pic/3.jpg" width="155" height="200" /><br><img src="pic/4.jpg" width="157" height="200" /></td></tr><tr><td id=demo2 valign=top></td></tr></table></div>
<script>
var speed=30
demo2.innerHTML=demo1.innerHTML
function Marquee(){
if(demo.scrollTop<=0)
demo.scrollTop+=demo2.offsetHeight
else{
demo.scrollTop--
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
</script>