js漂浮广告实现代码

网络编程 2024/11/20 佚名

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本文实例讲述了js实现漂浮广告的方法。分享给大家供大家参考。具体如下：

具体代码如下：

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script type="text/javascript" src="/UploadFiles/2021-04-02/moveobj.js">


moveobj.js：


var vmin=2;
var vmax=5;
var vr=2;
var timer1;

function iecompattest(){
return (document.compatMode && document.compatMode!="BackCompat")"chip="+chipname);
  if (window.innerWidth || window.opera){
  pageX=window.pageXOffset;
   pageW=window.innerWidth-40;
   pageY=window.pageYOffset;
   pageH=window.innerHeight-20;
  }
  else if (document.body){
  pageX=iecompattest().scrollLeft;
   pageW=iecompattest().offsetWidth-40;
   pageY=iecompattest().scrollTop;
   pageH=iecompattest().offsetHeight-20;
  } 

  chip.xx=chip.xx+chip.vx;
  chip.yy=chip.yy+chip.vy;
  
  chip.vx+=vr*(Math.random()-0.5);
  chip.vy+=vr*(Math.random()-0.5);
  if(chip.vx>(vmax+vmin)) chip.vx=(vmax+vmin)*2-chip.vx;
  if(chip.vx<(-vmax-vmin)) chip.vx=(-vmax-vmin)*2-chip.vx;
  if(chip.vy>(vmax+vmin)) chip.vy=(vmax+vmin)*2-chip.vy;
  if(chip.vy<(-vmax-vmin)) chip.vy=(-vmax-vmin)*2-chip.vy;

  if(chip.xx<=pageX){
  chip.xx=pageX;
   chip.vx=vmin+vmax*Math.random();
   }
  if(chip.xx>=pageX+pageW-chip.w){
  chip.xx=pageX+pageW-chip.w;
   chip.vx=-vmin-vmax*Math.random();
   }
  if(chip.yy<=pageY)
   {chip.yy=pageY;
   chip.vy=vmin+vmax*Math.random();
   }
  if(chip.yy>=pageY+pageH-chip.h)
   {chip.yy=pageY+pageH-chip.h;
   chip.vy=-vmin-vmax*Math.random();
   }

document.getElementById(chip.named).style.left=chip.xx+"px";
document.getElementById(chip.named).style.top=chip.yy+"px";


  chip.timer1=setTimeout("movechip('"+chip.named+"')",100);
 }
}



运行效果图：

 此特效包含的文件：

希望本文所述对大家的javascript程序设计有所帮助。