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标题: 漂浮广告代码分享 [打印本页]
作者: 庭院深深深几许    时间: 2019-1-4 13:23
标题: 漂浮广告代码分享
我们在打开网页的时候，我们会发现不管是什么网页都会有很多漂浮的广告，有很多人都会在想，这样的效果是怎么实现的呢?今天我们就带大家详细介绍下JavaScript实现漂浮广告代码的实例总结!
第一种 漂浮广告 不符合W3C
JavaScript漂浮广告代码，很不错，代码精简，不过一次只有漂一个，复制就能用了。希望站长朋友喜欢。
[HTML] 纯文本查看 复制代码
<html> 



<head> 



<title>漂浮广告</title> 



<body> 



<div id="codefans_net" style="position:absolute"> 



<!--链接地址--><a href="#" target="_blank"> 



<!--图片地址--><img src="/images/logo.gif" border="0"> 



</a> 



</div> 



<script> 



var x = 50,y = 60 



var xin = true, yin = true



var step = 1 



var delay = 10 



var obj=document.getElementById("codefans_net") 



function float() { 



var L=T=0 



var R= document.body.clientWidth-obj.offsetWidth 



var B = document.body.clientHeight-obj.offsetHeight 



obj.style.left = x + document.body.scrollLeft 



obj.style.top = y + document.body.scrollTop 



x = x + step*(xin?1:-1) 



if (x < L) { xin = true; x = L} 



if (x > R){ xin = false; x = R} 



y = y + step*(yin?1:-1) 



if (y < T) { yin = true; y = T } 



if (y > B) { yin = false; y = B } 



} 



var itl= setInterval("float()", delay) 



obj.onmouseover=function(){clearInterval(itl)} 



obj.onmouseout=function(){itl=setInterval("float()", delay)} 



</script> 



</body> 



</html>

第二种 漂浮广告 不符合标准
Js漂浮广告代码，比较经典的浮动广告，到现还很实用，如果你是一位站长的话，这种代码是必备的，希望对你有用处。
[HTML] 纯文本查看 复制代码
<html> 



<head> 



<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 



<title>漂浮广告</title> 



</head> 



<body> 



<DIV id=img1 style="Z-INDEX: 100; LEFT: 2px; WIDTH: 59px; POSITION: absolute; TOP: 43px; HEIGHT: 61px; 



visibility: visible;"><a href="http://sc.jb51.net" target="_blank"><img src="/images/logo.gif" width="80" height="80" border="0"></a></DIV> 



<SCRIPT> 



var xPos = 300; 



var yPos = 200; 



var step = 1; 



var delay = 30; 



var height = 0; 



var Hoffset = 0; 



var Woffset = 0; 



var yon = 0; 



var xon = 0; 



var pause = true; 



var interval; 



img1.style.top = yPos; 



function changePos() 



{ 



width = document.body.clientWidth; 



height = document.body.clientHeight; 



Hoffset = img1.offsetHeight; 



Woffset = img1.offsetWidth; 



img1.style.left = xPos + document.body.scrollLeft; 



img1.style.top = yPos + document.body.scrollTop; 



if (yon) 



{yPos = yPos + step;} 



else



{yPos = yPos - step;} 



if (yPos < 0) 



{yon = 1;yPos = 0;} 



if (yPos >= (height - Hoffset)) 



{yon = 0;yPos = (height - Hoffset);} 



if (xon) 



{xPos = xPos + step;} 



else



{xPos = xPos - step;} 



if (xPos < 0) 



{xon = 1;xPos = 0;} 



if (xPos >= (width - Woffset)) 



{xon = 0;xPos = (width - Woffset); } 



} 



 



function start() 



{ 



img1.visibility = "visible"; 



interval = setInterval('changePos()', delay); 



} 



function pause_resume() 



{ 



if(pause) 



{ 



clearInterval(interval); 



pause = false;} 



else



{ 



interval = setInterval('changePos()',delay); 



pause = true; 



} 



} 



start(); 



</SCRIPT> 



</body> 



</html>

上面两个都是不支持标准声明的
第三种 符合W3C的漂浮广告代码
[HTML] 纯文本查看 复制代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 



<html> 



<head> 



<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 



<title>符合W3C的漂浮广告代码-脚本之家</title> 



</head> 



<body> 



<script> 



document.write ("<DIV id=img1 style='Z-INDEX: 100; LEFT: 2px; WIDTH: 252px; POSITION: absolute; TOP: 43px; HEIGHT: 172px; ") 



document.write (" visibility: visible;'> ") 



document.write (" <a href='http://s.jb51.net' target='_blank'> ") 



document.write (" <img src='/upload/201204/20120411210123566.gif'style=border:none;/> ") 



document.write (" </a></DIV> ") 



var xPos = 300; 



var yPos = 200; 



var step = 1; 



var delay = 8; 



var height = 0; 



var Hoffset = 0; 



var Woffset = 0; 



var yon = 0; 



var xon = 0; 



var pause = true; 



var interval; 



img1.style.top = yPos; 



function changePos() 



{ 



width = document.documentElement.clientWidth; 



height = document.documentElement.clientHeight; 



Hoffset = img1.offsetHeight; 



Woffset = img1.offsetWidth; 



img1.style.left = xPos + document.documentElement.scrollLeft; 



img1.style.top = yPos + document.documentElement.scrollTop; 



if (yon) 



{yPos = yPos + step;} 



else



{yPos = yPos - step;} 



if (yPos < 0) 



{yon = 1;yPos = 0;} 



if (yPos >= (height - Hoffset)) 



{yon = 0;yPos = (height - Hoffset);} 



if (xon) 



{xPos = xPos + step;} 



else



{xPos = xPos - step;} 



if (xPos < 0) 



{xon = 1;xPos = 0;} 



if (xPos >= (width - Woffset)) 



{xon = 0;xPos = (width - Woffset); } 



} 



function start() 



{ 



img1.visibility = "visible"; 



interval = setInterval('changePos()', delay); 



} 



function pause_resume() 



{ 



if(pause) 



{ 



clearInterval(interval); 



pause = false;} 



else



{ 



interval = setInterval('changePos()',delay); 



pause = true; 



} 



} 



start(); 



</script> 



</body> 



</html>

总结：
本文介绍了JavaScript实现漂浮广告的几种方法，每个方法使用都不一样，小伙伴们可以根据自己的需求在选择适合自己的，希望对你的工作有所帮助!





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