js之鼠标随动后面跟随事件(类似于长龙跟着跑) 

<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Document</title>
</head>
<style>
      div{width: 10px;height: 20px;background-color: red;position: absolute;}      
      
</style>
<body>         
          <div></div>          
          <div></div>          
          <div></div>          
          <div></div>          
          <div></div>          
          <div></div>          
          <div></div>          
          <div></div>          
          <div></div>          
          <div></div>          
          <div></div>          
         
</body>

<script type="text/javascript">
         function getPos(ev){
             var scrollTop=document.documentElement.scrollTop || document.body.scrollTop;
             var scrollLeft=document.documentElement.scrollLeft || document.body.scrollLeft;
             return {x:ev.clientX+scrollLeft,y:ev.clientY+scrollTop }
         }
         
              document.onmousemove=function(ev){
                      var oDiv=document.getElementsByTagName('div');
                      var oEvent=ev || event;
                      var pos=getPos(oEvent);
                      
                      for(var i=oDiv.length-1;i>0;i--){
                              oDiv[i].style.left=oDiv[i-1].offsetLeft+'px';
                              oDiv[i].style.top=oDiv[i-1].offsetTop+'px';
                      }
                      oDiv[0].style.left=pos.x+'px';
                      oDiv[0].style.top=pos.y+'px';
              }
        
</script>
    
            

</html>

 

posted @ 2017-07-27 11:21  骏码信息  阅读(285)  评论(0)    收藏  举报