marquee无缝滚动，开始很好，一段时间后就自动停下来了

Posted 2023-04-12

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了marquee无缝滚动，开始很好，一段时间后就自动停下来了相关的知识，希望对你有一定的参考价值。

<div id="demo">
<div id="demo1">
<p class="news_item">
<img src="../images/newsimg.jpg" id="floatimgl" alt="News Pic"><a class="newsleft" href="NewsDetail.asp">他指出《国家中长期教育改革和发展规划纲要》标志着新一轮教育改革发展的大潮。</a>
</p>
<p class="news_item">
<img src="../images/newsimg.jpg" id="floatimgl" alt="News Pic"><a class="newsleft" href="NewsDetail.asp">他指出《国家中长期教育改革和发展规划纲要》标志着新一轮教育改革发展的大潮。</a>
</p>
</div>
<div id="demo2"></div>
</div>

<script>
var speed=1; //数字越大速度越慢
var tab=document.getElementById("demo");
var tab1=document.getElementById("demo1");
var tab2=document.getElementById("demo2");
tab2.innerhtml=tab1.innerHTML; //克隆demo1为demo2
tab.scrollTop=tab.scrollHeight
function Marquee()

if(tab1.offsetTop-tab.scrollTop>=0) //当滚动至demo1与demo2交界时
tab.scrollTop+=tab2.offsetHeight //demo跳到最顶端
else tab.scrollTop--

var MyMar=setInterval(Marquee,speed);
tab.onmouseover=function() clearInterval(MyMar);//鼠标移上时清除定时器达到滚动停止的目的
tab.onmouseout=function() MyMar=setInterval(Marquee,speed);//鼠标移开时重设定时器
</script>

搜狗浏览器没有这个问题，IE8里测试一会就自己停下来了，为什么啊？希望有人可以帮我，先谢过了~
这段滚动是放在三个嵌套的层里的，把这段程序单独拿出来滚动也没有问题，是不是层布局影响了这段滚动，希望高手指点，谢谢啊~
一楼和二楼的回答都不对，我现在基本解决了，主要是W3C标准的问题，不过还是谢谢大家的帮助！

你现在只有两条数据，无缝滚动他是有限制的，就是内容高度比较超过你DIV容器的高度，显示数据的时候会默认显示两次，当不足时他不会滚动，当两次加起来显示才超过一屏时他只滚动一次，所以想要无缝不停的滚动就多加几条数据使的单次显示的高度超过当时滚动DIV容器的高度就可以了！
一句话你加的内容不够多！参考技术A 这里有一个无缝滚动
可以参考一下
里面有教程和源码

参考资料：http://www.blueidea.com/common/shoutbox/redir.asp?2=h&id=12229

参考技术B 我认为你只要这样应该改就可以了：<div id="demo" style="overflow:hidden;height:80px;">
希望可以，努力！

JavaScript----marquee滚动标签图片无缝滚动插入百度地图

页面的自动滚动效果，可由javascript来实现，

但是有一个html标签 - <marquee></marquee>可以实现多种滚动效果，无需js控制。

使用marquee标记不仅可以移动文字，也可以移动图片，表格等.

语法：<marquee>...</marquee>；说明：在标记之间添加要进行滚动的内容。

重要属性：

1.滚动方向direction（包括4个值：up、 down、 left和 right）

　　语法：<marquee direction="滚动方向">...</marquee>

2.滚动方式behavior（scroll:循环滚动，默认效果； slide:只滚动一次就停止； alternate:来回交替进行滚动）

　　语法：<marquee behavior="滚动方式">...</marquee>

3.滚动速度scrollamount（滚动速度是设置每次滚动时移动的长度，以像素为单位）

　　语法：<marquee scrollamount="5">...</marquee>

4.滚动延迟scrolldelay（设置滚动的时间间隔，单位是毫秒）

　　语法：<marquee scrolldelay="100">...</marquee>

5.滚动循环loop（默认值是-1，滚动会不断的循环下去）

　　语法：<marquee loop="2">...</marquee>

6.滚动范围width、height

7.滚动背景颜色bgcolor

8.空白空间hspace、vspace

指整个Marquee对齐方式; (2)behavior:设置滚动的方式: scroll:表示由一端滚动到另一端,会重复,缺陷是不能无缝滚动。 slide:表示由一段滚动到另一端,不会重复

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marquee无缝滚动，开始很好，一段时间后就自动停下来了

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