投稿
  1. 首页
  2. 随笔

HTML下雪代码

akamai • 2023-4-5 • 随笔 • 阅读 22

HTML下雪代码,第1张

<html>

<head>

</head>

<BODY bgcolor="#000000">

<SCRIPT language=JavaScript1.2>

var snowsrc="images/xuehua1.gif"

var no = 10

var ns4up = (document.layers) ? 1 : 0// browser sniffer

var ie4up = (document.all) ? 1 : 0

var dx, xp, yp// coordinate and position variables

var am, stx, sty// amplitude and step variables

var i, doc_width = 800, doc_height =600

if (ns4up) {

doc_width = self.innerWidth

doc_height = self.innerHeight

} else if (ie4up) {

doc_width = document.body.clientWidth

doc_height = document.body.clientHeight

}

dx = new Array()

xp = new Array()

yp = new Array()

am = new Array()

stx = new Array()

sty = new Array()

for (i = 0i <no++ i) {

dx[i] = 0// set coordinate variables

xp[i] = Math.random()*(doc_width-50)// set position variables

yp[i] = Math.random()*doc_height

am[i] = Math.random()*20// set amplitude variables

stx[i] = 0.02 + Math.random()/10// set step variables

sty[i] = 0.7 + Math.random()// set step variables

if (ns4up) { // set layers

if (i == 0) {

document.write("<layer name=\"dot"+ i +"\" left=\"50\" top=\"50\" visibility=\"show\"><img src='"+snowsrc+"' border=\"0\"></a></layer>")

} else {

document.write("<layer name=\"dot"+ i +"\" left=\"50\" top=\"50\" visibility=\"show\"><img src='"+snowsrc+"' border=\"0\"></layer>")

}

} else if (ie4up) {

if (i == 0) {

document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absoluteZ-INDEX: "+ i +"VISIBILITY: visibleTOP: 15pxLEFT: 15px\"><img src='"+snowsrc+"' border=\"0\"></a></div>")

} else {

document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absoluteZ-INDEX: "+ i +"VISIBILITY: visibleTOP: 15pxLEFT: 15px\"><img src='"+snowsrc+"' border=\"0\"></div>")

}

}

}

function snowNS() { // Netscape main animation function

for (i = 0i <no++ i) { // iterate for every dot

yp[i] += sty[i]

if (yp[i] >doc_height-50) {

xp[i] = Math.random()*(doc_width-am[i]-30)

yp[i] = 0

stx[i] = 0.02 + Math.random()/10

sty[i] = 0.7 + Math.random()

doc_width = self.innerWidth

doc_height = self.innerHeight

}

dx[i] += stx[i]

document.layers["dot"+i].top = yp[i]

document.layers["dot"+i].left = xp[i] + am[i]*Math.sin(dx[i])

}

setTimeout("snowNS()", 10)

}

function snowIE() { // IE main animation function

for (i = 0i <no++ i) { // iterate for every dot

yp[i] += sty[i]

if (yp[i] >doc_height-50) {

xp[i] = Math.random()*(doc_width-am[i]-30)

yp[i] = 0

stx[i] = 0.02 + Math.random()/10

sty[i] = 0.7 + Math.random()

doc_width = document.body.clientWidth

doc_height = document.body.clientHeight

}

dx[i] += stx[i]

document.all["dot"+i].style.pixelTop = yp[i]

document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i])

}

setTimeout("snowIE()", 10)

}

if (ns4up) {

snowNS()

} else if (ie4up) {

snowIE()

}

</SCRIPT>

</body>

</html>

记得给我加分啊

var snowsrc="images/xuehua1.gif"这句是你雪花图片的地址

在后台添加js特效可实现这样的效果。

js代码为：

<script language="JavaScript">

<!--

var no = 5//雪片数目

var speed = 20//飘动速度。(值越大越慢)

var ns4up = (document.layers) ? 1 : 0//当前浏览器类型，如果是NS则为1

var ie4up = (document.all) ? 1 : 0//当前浏览器类型，如果是IE则为1

var s, x, y, sn, cs

var a, r, cx, cy

var i, doc_width = 800, doc_height = 600

x = new Array()

y = new Array()

r = new Array()

cx = new Array()

cy = new Array()

s = 8//每次下落的高度，越小越平滑，但是也越慢

if (ns4up) { //以NS兼容方式

doc_width = self.innerWidth//取页面宽度

doc_height = self.innerHeight//取页面高度

}

else

if (ie4up) { //以IE兼容方式

doc_width = document.body.clientWidth//取页面宽度

doc_height = document.body.clientHeight//取页面高度

}

for (i = 0i <no++ i) { //根据前面定义的雪片数目写进相应数目的层

initSnow()//随机初始化层的坐标

if (ns4up) { //如果浏览器是NS

//用layer作为雪片(星号)的容器

document.write("<layer name=\"dot"+ i +"\" left=\"1\" ")

document.write("top=\"1\" visibility=\"show\"><font color=\"red\">")

document.write("*</font></layer>")

}

else

if (ie4up) { //如果浏览器是IE

//用div作为雪片的容器

document.write("<div id=\"dot"+ i +"\" style=\"POSITION: ")

document.write("absoluteZ-INDEX: "+ i +"VISIBILITY: ")

document.write("visibleTOP: 15pxLEFT: 15px\"><font color=\"red\">")

document.write("*</font></div>")

}

}

//初始化雪片，生成随机坐标

function initSnow() {

a = 6

r[i] = 1

sn = Math.sin(a)

cs = Math.cos(a)

cx[i] = Math.random() * doc_width + 1

cy[i] = Math.random() * doc_height + 1

x[i] = r[i] * sn + cx[i]

y[i] = cy[i]

}

//计算雪花位置，从新位置上出现，看起来就像是新产生的一样。

function makeSnow() {

r[i] = 1

cx[i] = Math.random() * doc_width + 1

cy[i] = 1

x[i] = r[i] * sn + cx[i]

y[i] = r[i] * cs + cy[i]

}

//雪花下落的计算

function updateSnow() {

r[i] += s

x[i] = r[i] * sn + cx[i]

y[i] = r[i] * cs + cy[i]

}

//在NS浏览器上处理雪片下落的主程序

function SnowdropNS() {

for (i = 0i <no++ i) { //依次处理每片雪花

updateSnow()//下落

if ((x[i] <= 1) || (x[i] >= (doc_width - 20)) || (y[i] >= (doc_height - 20))) { //如果超出屏幕范围

makeSnow()//则调整雪片到新位置上

doc_width = self.innerWidth//更新页面宽度数据

doc_height = self.innerHeight//更新页面高度数据

}

document.layers["dot"+i].top = y[i]//改变层的Y坐标，应用新的位置

document.layers["dot"+i].left = x[i]//改变层的X坐标，应用新的位置

}

setTimeout("SnowdropNS()", speed)

}

//在IE浏览器上处理雪片下落的主程序

function SnowdropIE() {

for (i = 0i <no++ i) { //依次处理每片雪花

updateSnow()//下落

if ((x[i] <= 1) || (x[i] >= (doc_width - 20)) || (y[i] >= (doc_height - 20))) { //如果超出屏幕范围

makeSnow()//则调整雪片到新位置上

doc_width = document.body.clientWidth//更新页面宽度数据

doc_height = document.body.clientHeight//更新页面高度数据

}

document.all["dot"+i].style.pixelTop = y[i]//改变层的坐标，应用新的位置

document.all["dot"+i].style.pixelLeft = x[i]

}

setTimeout("SnowdropIE()", speed)//准备下一次下落过程。

}

if (ns4up) { //如果是NS

SnowdropNS()//调用SnowdropNS使雪片下落

}

else

if (ie4up) { //如果是NS

SnowdropIE()//调用SnowdropIE使雪片下落

}

-->

</script>

说明：可以根据自己的需求根据说明进行相应参数的修改

<html>

<head>

</head>

<BODY bgcolor="#000000">

<SCRIPT language=JavaScript1.2>

var snowsrc="images/xuehua1.gif"

var no = 10

var ns4up = (document.layers) ? 1 : 0// browser sniffer

var ie4up = (document.all) ? 1 : 0

var dx, xp, yp// coordinate and position variables

var am, stx, sty// amplitude and step variables

var i, doc_width = 800, doc_height =600

if (ns4up) {

doc_width = self.innerWidth

doc_height = self.innerHeight

} else if (ie4up) {

doc_width = document.body.clientWidth

doc_height = document.body.clientHeight

}

dx = new Array()

xp = new Array()

yp = new Array()

am = new Array()

stx = new Array()

sty = new Array()

for (i = 0i <no++ i) {

dx[i] = 0// set coordinate variables

xp[i] = Math.random()*(doc_width-50)// set position variables

yp[i] = Math.random()*doc_height

am[i] = Math.random()*20// set amplitude variables

stx[i] = 0.02 + Math.random()/10// set step variables

sty[i] = 0.7 + Math.random()// set step variables

if (ns4up) { // set layers

if (i == 0) {

document.write("<layer name=\"dot"+ i +"\" left=\"50\" top=\"50\" visibility=\"show\"><img src='"+snowsrc+"' border=\"0\"></a></layer>")

} else {

document.write("<layer name=\"dot"+ i +"\" left=\"50\" top=\"50\" visibility=\"show\"><img src='"+snowsrc+"' border=\"0\"></layer>")

}

} else if (ie4up) {

if (i == 0) {

document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absoluteZ-INDEX: "+ i +"VISIBILITY: visibleTOP: 15pxLEFT: 15px\"><img src='"+snowsrc+"' border=\"0\"></a></div>")

} else {

document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absoluteZ-INDEX: "+ i +"VISIBILITY: visibleTOP: 15pxLEFT: 15px\"><img src='"+snowsrc+"' border=\"0\"></div>")

}

}

}

function snowNS() { // Netscape main animation function

for (i = 0i <no++ i) { // iterate for every dot

yp[i] += sty[i]

if (yp[i] >doc_height-50) {

xp[i] = Math.random()*(doc_width-am[i]-30)

yp[i] = 0

stx[i] = 0.02 + Math.random()/10

sty[i] = 0.7 + Math.random()

doc_width = self.innerWidth

doc_height = self.innerHeight

}

dx[i] += stx[i]

document.layers["dot"+i].top = yp[i]

document.layers["dot"+i].left = xp[i] + am[i]*Math.sin(dx[i])

}

setTimeout("snowNS()", 10)

}

function snowIE() { // IE main animation function

for (i = 0i <no++ i) { // iterate for every dot

yp[i] += sty[i]

if (yp[i] >doc_height-50) {

xp[i] = Math.random()*(doc_width-am[i]-30)

yp[i] = 0

stx[i] = 0.02 + Math.random()/10

sty[i] = 0.7 + Math.random()

doc_width = document.body.clientWidth

doc_height = document.body.clientHeight

}

dx[i] += stx[i]

document.all["dot"+i].style.pixelTop = yp[i]

document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i])

}

setTimeout("snowIE()", 10)

}

if (ns4up) {

snowNS()

} else if (ie4up) {

snowIE()

}

</SCRIPT>

</body>

</html>

记得给我加分啊

var snowsrc="images/xuehua1.gif"这句是你雪花图片的地址

欢迎分享，转载请注明来源：内存溢出

原文地址: http://outofmemory.cn/zaji/7444641.html

赞 (0)
打赏 微信扫一扫 微信扫一扫 支付宝扫一扫 支付宝扫一扫
akamai akamai 一级用户组
0 0
上一篇 2023-04-05
下一篇 2023-04-05

发表评论

登录后才能评论

评论列表（0条）

保存