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Code example for JS to complete information scrolling function

Y2J

May 20, 2017 pm 01:15 PM

This article mainly introduces Javascript to achieve information scrolling effect in detail. It has certain reference value. Interested friends can refer to it.

The example of this article shares with you the js information scrolling effect. The specific code is for your reference. The specific content is as follows

Seamless scrolling upward:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>向上无缝滚动</title>
<style>
body {
 font-size: 12px;
 line-height: 24px;
 text-algin: center;  /* 页面内容居中 */
}
* {
 margin: 0px;
 padding: 0px;   /* 去掉所有标签的marign和padding的值 */
}
ul {
 list-style: none;   /* 去掉ul标签默认的点样式 */
}
a img {
 border: none;  /* 超链接下，图片的边框 */
}
a {
 color: #333;
 text-decoration: none;  /* 超链接样式 */
}
a:hover {
 color: #ff0000;
}
#mooc {
 width: 399px;
 border: 5px solid #ababab;
 -moz-border-radius: 15px;  /* Gecko browsers */
 -webkit-border-radius: 15px; /* Webkit browsers */
 border-radius: 15px;
 box-shadow: 2px 2px 10px #ababab;
 margin: 50px auto 0;
 text-align: left;    /* 让新闻内容靠左 */
}
/* 头部样式 */ 
#moocTitle {
 height: 62px;
 overflow: hidden; /* 这个一定要加上，内容超出的部分要隐藏，免得撑高头部 */
 font-size: 26px;
 line-height: 62px;
 padding-left: 30px;
 background-image: -moz-linear-gradient(top, #f05e6f, #c9394a); /* Firefox */
 background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #f05e6f), color-stop(1, #c9394a)); /* Saf4+, Chrome */
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=&#39;#8fa1ff&#39;, endColorstr=&#39;#f05e6f&#39;, GradientType=&#39;0&#39;); /* IE*/
 border: 1px solid ##f05e6f;
 -moz-border-radius: 8px 8px 0 0;  /* Gecko browsers */
 -webkit-border-radius: 8px 8px 0 0; /* Webkit browsers */
 border-radius: 8px 8px 0 0;
 color: #fff;
 position: relative;
}
#moocTitle a {
 position: absolute;
 right: 10px;
 bottom: 10px;
 display: inline;
 color: #fff;
 font-size: 12px;
 line-height: 24px;
}
/* 底部样式 */
#moocBot {
 width: 399px;
 height: 10px;
 overflow: hidden;  /* 这个一定要加上，内容超出的部分要隐藏，免得撑高底部结构 */
}
/* 中间样式 */
#moocBox {
 height: 144px;
 width: 335px;
 margin-left: 25px;
 margin-top: 10px;
 overflow: hidden; /* 这个一定要加，超出的内容部分要隐藏，免得撑高中间部分 */
}
#mooc ul li {
 height: 24px;
}
#mooc ul li a {
 width: 180px;
 float: left;
 display: block;
 overflow: hidden;
 text-indent: 15px;
 height: 24px;
}
#mooc ul li span {
 float: right;
 color: #999;
}
</style>
</head>

<body>
<!-- 慕课网课程公告开始 -->
<p id="mooc"> 
<!-- 头部 -->
<h3 id="最新课程-a-nbsp-href-nbsp-target-self-更多-a-nbsp">最新课程<a href="#" target="_self">更多>></a> </h3>
<!-- 头部结束 --> 
<!-- 中间 -->
<p id="moocBox">
 <ul id="con1">
  <li><a href="#">1.学会html5 绝对的屌丝逆袭（案例）</a><span>2013-09-18</span></li>
  <li><a href="#">2.tab页面切换效果（案例）</a><span>2013-10-09</span></li>
  <li><a href="#">3.圆角水晶按钮制作（案例）</a><span>2013-10-21</span></li>
  <li><a href="#">4.HTML+CSS基础课程(系列)</a><span>2013-11-01</span></li>
  <li><a href="#">5.分页页码制作（案例）</a><span>2013-11-06</span></li>
  <li><a href="#">6.导航条菜单的制作（案例）</a><span>2013-11-08</span></li>
  <li><a href="#">7.信息列表制作(案例)</a><span>2013-11-15</span></li>
  <li><a href="#">8.下拉菜单制作(案例)</a><span>2013-11-22</span></li>
  <li><a href="#">9.如何实现“新手引导”效果</a><span>2013-12-06</span></li>
 </ul>
 <ul id="con2">
 </ul>
</p>
<!-- 中间结束 --> 
</p>
<!-- 慕课网课程公告结束 --> 

<script type="text/javascript">
 var area = document.getElementById(&#39;moocBox&#39;);
 var con1 = document.getElementById(&#39;con1&#39;);
 var con2 = document.getElementById(&#39;con2&#39;);
 var speed = 50;
 area.scrollTop = 0;
 con2.innerHTML = con1.innerHTML;
 function scrollUp(){
  if(area.scrollTop >= con1.scrollHeight) {
   area.scrollTop = 0;
   }else{
   area.scrollTop ++; 
   } 
}
var myScroll = setInterval("scrollUp()",speed);
area.onmouseover = function(){
  clearInterval(myScroll);
 }
area.onmouseout = function(){
  myScroll = setInterval("scrollUp()",speed);
 }
 </script>
</body>
</html>

Intermittent scrolling:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>新闻无缝向上无缝滚动</title>
<style>
body {
 font-size: 12px;
 line-height: 24px;
 text-algin: center;  /* 页面内容居中 */
}
* {
 margin: 0px;
 padding: 0px;   /* 去掉所有标签的marign和padding的值 */
}
ul {
 list-style: none;   /* 去掉ul标签默认的点样式 */
}
a img {
 border: none;  /* 超链接下，图片的边框 */
}
a {
 color: #333;
 text-decoration: none;  /* 超链接样式 */
}
a:hover {
 color: #ff0000;
}
#mooc {
 width: 399px;
 border: 5px solid #ababab;
 -moz-border-radius: 15px;  /* Gecko browsers */
 -webkit-border-radius: 15px; /* Webkit browsers */
 border-radius: 15px;
 box-shadow: 2px 2px 10px #ababab;
 margin: 50px auto 0;
 text-align: left;    /* 让新闻内容靠左 */
}
/* 头部样式 */ 
#moocTitle {
 height: 62px;
 overflow: hidden; /* 这个一定要加上，内容超出的部分要隐藏，免得撑高头部 */
 font-size: 26px;
 line-height: 62px;
 padding-left: 30px;
 background-image: -moz-linear-gradient(top, #f05e6f, #c9394a); /* Firefox */
 background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #f05e6f), color-stop(1, #c9394a)); /* Saf4+, Chrome */
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=&#39;#8fa1ff&#39;, endColorstr=&#39;#f05e6f&#39;, GradientType=&#39;0&#39;); /* IE*/
 border: 1px solid ##f05e6f;
 -moz-border-radius: 8px 8px 0 0;  /* Gecko browsers */
 -webkit-border-radius: 8px 8px 0 0; /* Webkit browsers */
 border-radius: 8px 8px 0 0;
 color: #fff;
 position: relative;
}
#moocTitle a {
 position: absolute;
 right: 10px;
 bottom: 10px;
 display: inline;
 color: #fff;
 font-size: 12px;
 line-height: 24px;
}
/* 底部样式 */
#moocBot {
 width: 399px;
 height: 10px;
 overflow: hidden;  /* 这个一定要加上，内容超出的部分要隐藏，免得撑高底部结构 */
}
/* 中间样式 */
#moocBox {
 height: 144px;
 width: 335px;
 margin-left: 25px;
 margin-top: 10px;
 overflow: hidden; /* 这个一定要加，超出的内容部分要隐藏，免得撑高中间部分 */
}
#mooc ul li {
 height: 24px;
}
#mooc ul li a {
 width: 180px;
 float: left;
 display: block;
 overflow: hidden;
 text-indent: 15px;
 height: 24px;
}
#mooc ul li span {
 float: right;
 color: #999;
}
</style>
</head>

<body>
<!-- 慕课网课程公告开始 -->
<p id="mooc"> 
<!-- 头部 -->
<p id="moocTitle">慕课网最新课程<a href="#" target="_self">更多>></a> </p>
<!-- 头部结束 --> 
<!-- 中间 -->
<p id="moocBox">
 <ul>
  <li><a href="#">1.学会html5 绝对的屌丝逆袭（案例）</a><span>2013-09-18</span></li>
  <li><a href="#">2.tab页面切换效果（案例）</a><span>2013-10-09</span></li>
  <li><a href="#">3.圆角水晶按钮制作（案例）</a><span>2013-10-21</span></li>
  <li><a href="#">4.HTML+CSS基础课程(系列)</a><span>2013-11-01</span></li>
  <li><a href="#">5.分页页码制作（案例）</a><span>2013-11-06</span></li>
  <li><a href="#">6.导航条菜单的制作（案例）</a><span>2013-11-08</span></li>
  <li><a href="#">7.信息列表制作(案例)</a><span>2013-11-15</span></li>
  <li><a href="#">8.下拉菜单制作(案例)</a><span>2013-11-22</span></li>
  <li><a href="#">9.如何实现“新手引导”效果</a><span>2013-12-06</span></li>
 </ul>
</p>
<!-- 中间结束 --> 
<!-- 底部 -->
<p id ="moocBot"> </p>
<!-- 底部结束 --> 
</p>
<!-- 慕课网课程公告结束 --> 

<script type="text/javascript">
 var area = document.getElementById(&#39;moocBox&#39;);
 var iliHeight = 24;//单行滚动的高度
 var speed = 50;//滚动的速度
 var time;
 var delay= 2000;
 area.scrollTop=0;
 area.innerHTML+=area.innerHTML;//克隆一份一样的内容
 function startScroll(){
  time=setInterval("scrollUp()",speed);
  area.scrollTop++;
  }
 function scrollUp(){
  if(area.scrollTop % iliHeight==0){
   clearInterval(time);
   setTimeout(startScroll,delay);
   }else{
    area.scrollTop++;
    if(area.scrollTop >= area.scrollHeight/2){
     area.scrollTop =0;
     }
    }
  }
  setTimeout(startScroll,delay)
 </script>
</body>
</html>

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