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。
漂浮广告
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.οnmοuseοver=function(){clearInterval(itl)}
obj.οnmοuseοut=function(){itl=setInterval("float()", delay)}
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。
漂浮广告visibility: visible;">
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();
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
符合W3C的漂浮广告代码-脚本之家
document.write ("
")
document.write (" ")
document.write (" ")
document.write ("
")
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();
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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