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JS简单封装的图片无缝滚动效果示例【测试可用】

onlyfu 人气:1

本文实例讲述了JS简单封装的图片无缝滚动效果。分享给大家供大家参考,具体如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="utf-8">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>无缝滚动图片示例-F-BLOG</title>
    <style type="text/css">
      ul{list-style:none;padding:0px;margin:0px;}
      #demo1 ul,#demo2 ul{width:400px;}
      #demo1 li,#demo2 li{float:left;}
    </style>
    <script type="text/javascript">
      function $(id){
        return document.getElementById(id);
      }
      function Marquee(id,toFollow,speed)
      {
        var doScroll;
        var scrollBox_x="<table cellpadding='0' cellspacing='0'><tr><td id='"+id+"abox'>"+$(id).innerHTML+"</td><td id='"+id+"bbox'>"+$(id).innerHTML+"</td></tr></table>";
        var scrollBox_y="<table cellpadding='0' cellspacing='0'><tr><td id='"+id+"abox'>"+$(id).innerHTML+"</td></tr><tr><td id='"+id+"bbox'>"+$(id).innerHTML+"</td></tr></table>";
        var begin=function(){
          switch(toFollow){
            case "left":
              $(id).innerHTML=scrollBox_x;
              doScroll=setInterval(function(){
                if($(id).scrollLeft==$(id+"abox").offsetWidth) $(id).scrollLeft=0;
                $(id).scrollLeft++;
              },speed);
              break;
            case "right":
              $(id).innerHTML=scrollBox_x;
              doScroll=setInterval(function(){
                if($(id).scrollLeft<=0) $(id).scrollLeft=$(id+"bbox").offsetWidth;
                $(id).scrollLeft--;
              },speed);
              break;
            case "top":
              $(id).innerHTML=scrollBox_y;
              doScroll=setInterval(function(){
                if($(id).scrollTop==$(id+"abox").offsetHeight) $(id).scrollTop=0;
                $(id).scrollTop++;
              },speed);
              break;
            case "bottom":
              $(id).innerHTML=scrollBox_y;
              doScroll=setInterval(function(){
                if($(id).scrollTop<=0) $(id).scrollTop=$(id+"bbox").offsetHeight;
                $(id).scrollTop--;
              },speed);
              break;
            }
          }
          begin();
          $(id).onmouseover=function() {clearInterval(doScroll);}
          $(id).onmouseout=function() {begin();}
        }
        window.onload=function(){
          Marquee("demo2","left",30);
          Marquee("demo1","right",20);
          Marquee("demo3","top",30);
          Marquee("demo4","bottom",30);
        }
</script>
  </head>
<body>
   <div id="demo1" style="overflow:hidden;height:100px;width:300px;">
     <ul>
       <li><img src="mm.jpg" mce_src="mm.jpg" style="height:100px;width:200px;" /></li>
       <li><img src="me.jpg" mce_src="me.jpg" style="height:100px;width:200px;" /></li>
     </ul>
   </div>
   <br/>
   <div id="demo2" style="overflow:hidden;height:100px;width:300px;">
     <ul>
       <li><img src="mm.jpg" mce_src="mm.jpg" style="height:100px;width:200px;" /></li>
       <li><img src="me.jpg" mce_src="me.jpg" style="height:100px;width:200px;" /></li>
     </ul>
   </div>
   <br/>
   <div id="demo3" style="overflow:hidden;height:150px;width:200px;">
     <ul>
       <li><img src="mm.jpg" mce_src="mm.jpg" style="height:100px;width:200px;" /></li>
       <li><img src="me.jpg" mce_src="me.jpg" style="height:100px;width:200px;" /></li>
     </ul>
   </div>
   <br/>
   <div id="demo4" style="overflow:hidden;height:150px;width:200px;">
     <ul>
       <li><img src="mm.jpg" mce_src="mm.jpg" style="height:100px;width:200px;" /></li>
       <li><img src="me.jpg" mce_src="me.jpg" style="height:100px;width:200px;" /></li>
     </ul>
   </div>
</body>
</html>

希望本文所述对大家JavaScript程序设计有所帮助。

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