本文目錄一覽：
求網頁飄雪花源代碼
把下列代碼加到網頁的Body/Body標籤之間
html
head
title:::飄雪花效果:::網頁特效代碼:::失落網家園;/title
/head
BODY bgcolor=”#000000″
SCRIPT language=JavaScript1.2
var snowsrc=”img/snow.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 = 0; i 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=\”15\” top=\”15\” visibility=\”show\”a href=\”\”img src='”+snowsrc+”‘ border=\”0\”/a/layer”);
} else {
document.write(“layer name=\”dot”+ i +”\” left=\”15\” top=\”15\” visibility=\”show\”img src='”+snowsrc+”‘ border=\”0\”/layer”);
}
} else if (ie4up) {
if (i == 0) {
document.write(“div id=\”dot”+ i +”\” style=\”POSITION: absolute; Z-INDEX: “+ i +”; VISIBILITY: visible; TOP: 15px; LEFT: 15px;\”a href=\”\”img src='”+snowsrc+”‘ border=\”0\”/a/div”);
} else {
document.write(“div id=\”dot”+ i +”\” style=\”POSITION: absolute; Z-INDEX: “+ i +”; VISIBILITY: visible; TOP: 15px; LEFT: 15px;\”img src='”+snowsrc+”‘ border=\”0\”/div”);
}
}
}
function snowNS() { // Netscape main animation function
for (i = 0; i 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 = 0; i 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
table border=”0″ width=”100%” cellpadding=”0″
tr
td width=”100%”font color=”#ffffff” size=”2″b飄雪花效果/b注意保存這個圖片（img border=”1″ src=”img/snow.gif” width=”16″ height=”17″）/font/td
/tr
tr
td width=”100%”
/table
script language=”JavaScript” type=”text/javascript” src=”js.js”/scripttr/body
/html
網頁飄雪花的代碼是什麼
在後台添加js特效可實現這樣的效果。
js代碼為：
script language=”JavaScript”
!–
var no = 5; //雪片數目
var speed = 20; //飄動速度。(值越大越慢)
var ns4up = (document.layers) ? 1 : 0; //當前瀏覽器類型，如果是NS則為1
var ie4up = (document.all) ? 1 : 0; //當前瀏覽器類型，如果是IE則為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; //取頁面寬度
doc_height = self.innerHeight; //取頁面高度
}
else
if (ie4up) { //以IE兼容方式
doc_width = document.body.clientWidth; //取頁面寬度
doc_height = document.body.clientHeight; //取頁面高度
}
for (i = 0; i no; ++ i) { //根據前面定義的雪片數目寫進相應數目的層
initSnow(); //隨機初始化層的坐標
if (ns4up) { //如果瀏覽器是NS
//用layer作為雪片(星號)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) { //如果瀏覽器是IE
//用div作為雪片的容器
document.write(“div id=\”dot”+ i +”\” style=\”POSITION: “);
document.write(“absolute; Z-INDEX: “+ i +”; VISIBILITY: “);
document.write(“visible; TOP: 15px; LEFT: 15px;\”font color=\”red\””);
document.write(“*/font/div”);
}
}
//初始化雪片，生成隨機坐標
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];
}
//計算雪花位置，從新位置上出現，看起來就像是新產生的一樣。
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];
}
//雪花下落的計算
function updateSnow() {
r[i] += s;
x[i] = r[i] * sn + cx[i];
y[i] = r[i] * cs + cy[i];
}
//在NS瀏覽器上處理雪片下落的主程序
function SnowdropNS() {
for (i = 0; i no; ++ i) { //依次處理每片雪花
updateSnow(); //下落
if ((x[i] = 1) || (x[i] = (doc_width – 20)) || (y[i] = (doc_height – 20))) { //如果超出屏幕範圍
makeSnow(); //則調整雪片到新位置上
doc_width = self.innerWidth; //更新頁面寬度數據
doc_height = self.innerHeight; //更新頁面高度數據
}
document.layers[“dot”+i].top = y[i]; //改變層的Y坐標，應用新的位置
document.layers[“dot”+i].left = x[i]; //改變層的X坐標，應用新的位置
}
setTimeout(“SnowdropNS()”, speed);
}
//在IE瀏覽器上處理雪片下落的主程序
function SnowdropIE() {
for (i = 0; i no; ++ i) { //依次處理每片雪花
updateSnow(); //下落
if ((x[i] = 1) || (x[i] = (doc_width – 20)) || (y[i] = (doc_height – 20))) { //如果超出屏幕範圍
makeSnow(); //則調整雪片到新位置上
doc_width = document.body.clientWidth; //更新頁面寬度數據
doc_height = document.body.clientHeight; //更新頁面高度數據
}
document.all[“dot”+i].style.pixelTop = y[i]; //改變層的坐標，應用新的位置
document.all[“dot”+i].style.pixelLeft = x[i];
}
setTimeout(“SnowdropIE()”, speed); //準備下一次下落過程。
}
if (ns4up) { //如果是NS
SnowdropNS(); //調用SnowdropNS使雪片下落
}
else
if (ie4up) { //如果是NS
SnowdropIE(); //調用SnowdropIE使雪片下落
}
—
/script
說明：可以根據自己的需求根據說明進行相應參數的修改
Dreamweaver海報首頁怎樣做出雪花飄
首頁雪花飄的效果是通過圖片+JS代碼做出來的。
先做flash引導線製作雪花飄落的動畫圖片。
在這個雪花圖片中加入JS代碼即可。
以下是參考代碼：
script language=”JavaScript”
!–
N =20;
Y = new Array();
X = new Array();
S = new Array();
A = new Array();
B = new Array();
M = new Array();
V = (document.layers)?1:0;
iH=(document.layers)?window.innerHeight:window.document.body.clientHeight;
iW=(document.layers)?window.innerWidth:window.document.body.clientWidth;
for (i=0; i N; i++){
Y[i]=Math.round(Math.random()*iH);
X[i]=Math.round(Math.random()*iW);
S[i]=Math.round(Math.random()*5+2);
A[i]=0;
B[i]=Math.random()*0.1+0.1;
M[i]=Math.round(Math.random()*1+7);
}
if (V){
for (i = 0; i N; i++)
{document.write(“LAYER NAME=’sn”+i+”‘ LEFT=0 TOP=0 BGCOLOR=’#FFFFF0’ CLIP=’0,0,”+M[i]+”,”+M[i]+”‘;z-index: 1font color=white size=3 face=’Wingdings’T/font/LAYER”)}
}
else{
document.write(‘div style=”position:absolute;top:0px;left:0px;z-index: 1″‘);
document.write(‘div style=”position:relative;z-index: 1″‘);
for (i = 0; i N; i++)
{document.write(‘div id=”si” style=”position:absolute;z-index: 1;top:0;left:0;width:’+M[i]+’;height:’+M[i]+’;font-size:’+M[i]+'”font color=white size=3 face=”Wingdings”T/font/div’)}
document.write(‘/div/div’);
}
function snow(){
var H=(document.layers)?window.innerHeight:window.document.body.clientHeight;
var W=(document.layers)?window.innerWidth:window.document.body.clientWidth;
var T=(document.layers)?window.pageYOffset:document.body.scrollTop;
var L=(document.layers)?window.pageXOffset:document.body.scrollLeft;
for (i=0; i N; i++){
sy=S[i];
sx=S[i]*Math.cos(A[i]);
Y[i]+=sy;
X[i]+=sx;
if (Y[i] H){
Y[i]=-10;
X[i]=Math.round(Math.random()*W);
M[i]=Math.round(Math.random()*1+7);
S[i]=Math.round(Math.random()*5+2);
}
if (V){document.layers[‘sn’+i].left=X[i];document.layers[‘sn’+i].top=Y[i]+T}
else{si[i].style.pixelLeft=X[i];si[i].style.pixelTop=Y[i]+T}
A[i]+=B[i];
}
setTimeout(‘snow()’,40);
}
snow()
//–
/script
淘寶里首頁飄雪花 怎麼弄啊 js代碼放在哪裡啊 本人小白 希望大神詳解…..
div class=”J_TWidget” data-widget-config=”{‘duration’:0.1,’activeTriggerCls’:’.tshop-psm-shop-ww-hover’,’interval’:0.1,’effect’:’scrollx’,’activeIndex’:1,’navCls’:’user-crzysj’,’contentCls’:’user-crzysjii’,’autoplay’:true}” data-widget-type=”Carousel” style=”position:relative;”ul class=”user-crzysjii” style=”display: none; width: 999999px; left: 0px; position: absolute;”li class=”-_-switchable-panel-internal535 ks-switchable-panel-internal998″ style=”width: 475px; height: 800px; display: block; float: left;” /li/ulul class=”user-crzysj”li class=”-_-switchable-trigger-internal534 ks-switchable-trigger-internal997 tshop-psm-shop-ww-hover” style=”width:475px;height:800px;right:50%;margin-right:505px;”embed allownetworking=”all” allowscriptaccess=”never” flashvars=”scene=taobao_shop” height=”1000″ name=”flashfirebug_1387778983714″ src=”” type=”application/x-shockwave-flash” width=”475″ wmode=”transparent”/li/ul/divdiv class=”J_TWidget” data-widget-config=”{‘duration’:0.1,’activeTriggerCls’:’.tshop-psm-shop-ww-hover’,’interval’:0.1,’effect’:’scrollx’,’activeIndex’:1,’navCls’:’user-crzysj’,’contentCls’:’user-crzysjii’,’autoplay’:true}” data-widget-type=”Carousel” style=”position:relative;z-index:99;”ul class=”user-crzysjii” style=”display: none; width: 999999px; left: 0px; position: absolute;”li class=”-_-switchable-panel-internal635 ks-switchable-panel-internal1108″ style=”width: 475px; height: 800px; display: block; float: left;” /li/ulul class=”user-crzysj”li class=”-_-switchable-trigger-internal634 ks-switchable-trigger-internal1107 tshop-psm-shop-ww-hover” style=”width:475px;height:800px;left:50%;margin-left:505px;”embed allownetworking=”all” allowscriptaccess=”never” flashvars=”scene=taobao_shop” height=”1000″ name=”flashfirebug_1387778983652″ src=”” type=”application/x-shockwave-flash” width=”475″ wmode=”transparent”/li/ul/div
直接在首頁添加個自定義模塊 編輯 點兩個箭頭的那個編輯代碼模式 然後複製代碼放進去 確定就好！
原創文章，作者：小藍，如若轉載，請註明出處：https://www.506064.com/zh-hant/n/190693.html
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