图片无缝循环滚动代码
很明显大多数网页设计者知道Marquee这个标签，但是它的不足也是显而易见的，就是刚打开网页的时候会显示一片空白然后才慢慢显示marquee标签里面内容，而最好的效果是刚打开页面就会看到内容的滚动。
但我在用这代码的时候遇到些问题，加到原有网页后会和原有的代码冲突，造成没有达到预期的效果，我没再深入研究是哪部分代码有冲突，最后利用iframe临时解决了。
下面分别收藏的是上下左右四种方向的代码，想用什么就Copy什么吧，给个演示：
<div id=demo style="overflow:hidden;height:100px;width:300px;"><table align=left cellpadding=0 cellspace=0 border=0><tr><td id=demo1 valign=top><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"></td><td id=demo2 valign=top></td></tr></table></div> <script> var speed=30 demo2.innerHTML=demo1.innerHTML function Marquee(){ if(demo2.offsetWidth-demo.scrollLeft<=0) demo.scrollLeft-=demo1.offsetWidth else{ demo.scrollLeft++ } } var MyMar=setInterval(Marquee,speed) demo.onmouseover=function() {clearInterval(MyMar)} demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)} </script>
向上：
<div id=demo style="overflow:hidden; width:128px; height:300px;"> <div id=demo1> <img src="http://www.baidu.com/img/baidu_sylogo1.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="http://www.baidu.com/img/baidu_sylogo1.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="http://www.baidu.com/img/baidu_sylogo1.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="http://www.baidu.com/img/baidu_sylogo1.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="http://www.baidu.com/img/baidu_sylogo1.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="http://www.baidu.com/img/baidu_sylogo1.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="http://www.baidu.com/img/baidu_sylogo1.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="http://www.baidu.com/img/baidu_sylogo1.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="http://www.baidu.com/img/baidu_sylogo1.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="http://www.baidu.com/img/baidu_sylogo1.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="http://www.baidu.com/img/baidu_sylogo1.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> </div> <div id=demo2></div> </div> <script language="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() {MyMar=setInterval(Marquee,speed)} </script>
向下：
<div id=demo style="overflow:hidden; width:128px; height:300px;"> <div id=demo1> <img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> <img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><br> </div> <div id=demo2></div> </div> <script language="javascript"> var speed=30 demo2.innerHTML=demo1.innerHTML demo.scrollTop=demo.scrollHeight function Marquee(){ if(demo1.offsetTop-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>
向左：
<div id=demo style="overflow:hidden;height:100px;width:300px;"><table align=left cellpadding=0 cellspace=0 border=0><tr><td id=demo1 valign=top><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"></td><td id=demo2 valign=top></td></tr></table></div> <script> var speed=30 demo2.innerHTML=demo1.innerHTML function Marquee(){ if(demo2.offsetWidth-demo.scrollLeft<=0) demo.scrollLeft-=demo1.offsetWidth else{ demo.scrollLeft++ } } var MyMar=setInterval(Marquee,speed) demo.onmouseover=function() {clearInterval(MyMar)} demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)} </script>
向右：
<div id=demo style="overflow:hidden;height:100px;width:300px;"><table align=left
cellpadding=0 cellspace=0 border=0><tr><td id=demo1 valign=top><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img
src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"><img
src="https://yangjunwei.com/s/s/images/nuodou_logo.gif"></td><td id=demo2 valign=top></td>
;</tr></table></div>
<script>
var speed=30
demo2.innerHTML=demo1.innerHTML
demo.scrollLeft=demo.scrollWidth
function Marquee(){
if(demo.scrollLeft<=0)
demo.scrollLeft+=demo2.offsetWidth
else{
demo.scrollLeft--
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
</script>
