简单的jQuery无缝向上滚动效果

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<title>简单的jQuery无缝向上滚动效果演示1_dowebok</title>
<style>
* { margin: 0; padding: 0;}
.myscroll { width: 300px; height: 260px; margin: 0 auto; border: 1px solid #ccc; line-height: 26px; font-size: 12px; overflow: hidden;}
.myscroll li { height: 26px; margin-left: 25px;}
.myscroll a { color: #333; text-decoration: none;}
.myscroll a:hover { color: #ED5565; text-decoration: underline;}
</style>
<script src="http://cdn.staticfile.org/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript" src="js/scroll.js"></script>
<script type="text/javascript">
$(function(){
   $('.myscroll').myScroll({
      speed: 20, //数值越大，速度越慢
      rowHeight: 26, //li的高度
   });
});
</script>
</head>

<body>
<h1 style="margin: 40px; font: 32px Microsoft Yahei; text-align: center;">简单的jQuery无缝向上滚动效果演示1</h1>

<div class="menu">
   <a class="cur" href="index.html">演示1（文字滚动）</a>
   <a href="index2.html">演示2（图片滚动）</a>
</div>

<div class="myscroll">
   <ul>
      <li><a href="http://www.dowebok.com/68.html">用FlexSlider制作支付宝2013版幻灯片</a></li>
      <li><a href="http://www.dowebok.com/67.html">扁平化UI/Flat UI Kit(PSD)</a></li>
      <li><a href="http://www.dowebok.com/66.html">童趣卡通圣诞老人矢量素材(EPS)</a></li>
      <li><a href="http://www.dowebok.com/65.html">63个线性图标素材(PSD)</a></li>
      <li><a href="http://www.dowebok.com/64.html">15个音乐类图标素材(AI)</a></li>
      <li><a href="http://www.dowebok.com/63.html">jQuery侧边导航插件SidebarJS</a></li>
      <li><a href="http://www.dowebok.com/62.html">jQuery计时器插件TimeCircles</a></li>
      <li><a href="http://www.dowebok.com/61.html">jQuery仿Google Play幻灯片效果插件plusview</a></li>
      <li><a href="http://www.dowebok.com/60.html">100个圣诞节矢量图标(PSD/SVG)</a></li>
      <li><a href="http://www.dowebok.com/59.html">用FlexSlider制作《枪神纪》幻灯片效果</a></li>
      <li><a href="http://www.dowebok.com/68.html">用FlexSlider制作支付宝2013版幻灯片</a></li>
      <li><a href="http://www.dowebok.com/67.html">扁平化UI/Flat UI Kit(PSD)</a></li>
      <li><a href="http://www.dowebok.com/66.html">童趣卡通圣诞老人矢量素材(EPS)</a></li>
      <li><a href="http://www.dowebok.com/65.html">63个线性图标素材(PSD)</a></li>
      <li><a href="http://www.dowebok.com/64.html">15个音乐类图标素材(AI)</a></li>
      <li><a href="http://www.dowebok.com/63.html">jQuery侧边导航插件SidebarJS</a></li>
      <li><a href="http://www.dowebok.com/62.html">jQuery计时器插件TimeCircles</a></li>
      <li><a href="http://www.dowebok.com/61.html">jQuery仿Google Play幻灯片效果插件plusview</a></li>
      <li><a href="http://www.dowebok.com/60.html">100个圣诞节矢量图标(PSD/SVG)</a></li>
      <li><a href="http://www.dowebok.com/59.html">用FlexSlider制作《枪神纪》幻灯片效果</a></li>
   </ul>
</div>

</body>
</html>

// JavaScript Document
(function($){
   $.fn.myScroll = function(options){
   //默认配置
   var defaults = {
      speed:40,  //滚动速度,值越大速度越慢
      rowHeight:24 //每行的高度
   };
   
   var opts = $.extend({}, defaults, options),intId = [];
   
   function marquee(obj, step){
   
      obj.find("ul").animate({
         marginTop: '-=1'
      },0,function(){
            var s = Math.abs(parseInt($(this).css("margin-top")));
            if(s >= step){
               $(this).find("li").slice(0, 1).appendTo($(this));
               $(this).css("margin-top", 0);
            }
         });
      }
      
      this.each(function(i){
         var sh = opts["rowHeight"],speed = opts["speed"],_this = $(this);
         intId[i] = setInterval(function(){
            if(_this.find("ul").height()<=_this.height()){
               clearInterval(intId[i]);
            }else{
               marquee(_this, sh);
            }
         }, speed);

         _this.hover(function(){
            clearInterval(intId[i]);
         },function(){
            intId[i] = setInterval(function(){
               if(_this.find("ul").height()<=_this.height()){
                  clearInterval(intId[i]);
               }else{
                  marquee(_this, sh);
               }
            }, speed);
         });
      
      });

   }

})(jQuery);

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npm install webpack -g

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简单的jQuery无缝向上滚动效果

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