本文目录一览：
谁能提供网页樱花飘落的背景特效？
背景颜色自己选[推荐][共1步]
====1、以下是这个效果的全部代码。[更好从一个空页面开始]
html
head
meta http-equiv="Content-Type" content="text/html; charset=gb_2312-80"
title新页面 /title
/head
body
script language="JavaScript"
!--
done = 0;
step = 4
function anim(yp,yk)
{
if(document.layers) document.layers["napis"].top=yp;
else document.all["napis"].style.top=yp;
if(ypyk) step = -4
if(yp60) step = 4
setTimeout('anim('+(yp+step)+','+yk+')', 35);
}
function start()
{
if(done) return
done = 1;
if(navigator.appName=="Netscape") {
document.napis.left=innerWidth/2 - 145;
anim(60,innerHeight - 60)
}
else {
napis.style.left=11;
anim(60,document.body.offsetHeight - 60)
}
}
//--
/script
div id="napis"
style="position: absolute;top: -50;
color: #000000;font-family:宋体;font-size:9pt;"
/divscript language="JavaScript"
!--
setTimeout('start()',10);
//--
/script
script language="JavaScript"
!-- Begin
function initArray() {
for (var i = 0; i initArray.arguments.length; i++) {
this[i] = initArray.arguments[i];
}
this.length = initArray.arguments.length;
}
var colors = new initArray(
"#000000","#0000FF","#80FFFF","#80FF80","#FFFF00","#FF8000","#FF00FF","#FF0000"
);
delay = 100
link = 0;
vlink = 0;
function linkDance() {
link = (link+1)%colors.length;
vlink = (vlink+1)%colors.length;
document.linkColor = colors[link];
document.vlinkColor = colors[vlink];
setTimeout("linkDance()",delay);
}
linkDance();
// End --
/script
script
function colors(c1){
this.c1 = c1;
}
a00 = new colors("FFFBD0");
a01 = new colors("FF0000");
a02 = new colors("FF8080");
a03 = new colors("FF8000");
a04 = new colors("FFFF00");
a05 = new colors("000080");
a06 = new colors("0000FF");
a07 = new colors("008000");
a08 = new colors("00FF00");
a09 = new colors("804000");
a10 = new colors("808000");
a11 = new colors("000000");
a12 = new colors("FFFFFF");
a13 = new colors("C0C0C0");
a14 = new colors("408080");
a15 = new colors("808080");
a16 = new colors("D2BF51");
a17 = new colors("44BBE8");
a18 = new colors("C97AB9");
a19 = new colors("A2C97A");
a20 = new colors("804000");
a21 = new colors("6AE6C4");
a22 = new colors("33A3D1");
a23 = new colors("6C9AEE");
function changebg(type){
scheme = type;
document.bgColor = scheme.c1;
timerID=setTimeout('document.bgColor = scheme.c2', document.selector.value * 10);
}
/script
form NAME="selector"
pinput TYPE="button" onClick="changebg(a00)" style="background-color: rgb(255,251,208)"input
TYPE="button" onClick="changebg(a01)" style="background-color: rgb(255,0,0)"input
TYPE="button" onClick="changebg(a02)" style="background-color: rgb(255,128,128)"input
TYPE="button" onClick="changebg(a03)" style="background-color: rgb(255,128,0)"input
TYPE="button" onClick="changebg(a04)" style="background-color: rgb(255,255,0)"input
TYPE="button" onClick="changebg(a05)" style="background-color: rgb(0,0,128)"input
TYPE="button" onClick="changebg(a06)" style="background-color: rgb(0,0,255)"input
TYPE="button" onClick="changebg(a07)" style="background-color: rgb(0,128,0)"input
TYPE="button" onClick="changebg(a08)" style="background-color: rgb(0,255,0)"input
TYPE="button" onClick="changebg(a09)" style="background-color: rgb(128,0,0)"input
TYPE="button" onClick="changebg(a10)" style="background-color: rgb(128,128,0)"input
TYPE="button" onClick="changebg(a11)" style="background-color: rgb(0,0,0)"input
TYPE="button" onClick="changebg(a12)" style="background-color: rgb(255,255,255)"input
TYPE="button" onClick="changebg(a13)" style="background-color: rgb(192,192,192)"input
TYPE="button" onClick="changebg(a14)" style="background-color: rgb(64,128,128)"input
TYPE="button" onClick="changebg(a15)" style="background-color: rgb(128,128,128)"input
TYPE="button" onClick="changebg(a16)" style="background-color: rgb(210,191,81)"input
TYPE="button" onClick="changebg(a17)" style="background-color: rgb(68,187,232)"input
TYPE="button" onClick="changebg(a18)" style="background-color: rgb(201,122,185)"input
TYPE="button" onClick="changebg(a19)" style="background-color: rgb(162,201,122)"input
TYPE="button" onClick="changebg(a20)" style="background-color: rgb(106,230,196)"input
TYPE="button" onClick="changebg(a21)" style="background-color: rgb(194,219,185)"input
TYPE="button" onClick="changebg(a22)" style="background-color: rgb(51,163,209)"input
TYPE="button" onClick="changebg(a23)" style="background-color: rgb(108,154,238)" /p
/form
/body
/html
不停变换的背景颜色[共1步]
====1、将以下代码加入HTML的body/body之间：
body bgColor="#ffffff" onload="chgCol(); pingpong();"
script language="JavaScript"
!-- Hide from JavaScript-Impaired Browsers
var pos = 10;
function initArray() {
this.length = initArray.arguments.length;
for (var i = 0; i this.length; i++) {
this[i] = initArray.arguments[i];
}
}
var col=new initArray("4b","5b","8b","8b");
col[0] = "yellow";
col[1] = "coral";
col[2] = "orange";
col[3] = "red";
col[4] = "greenyellow";
col[5] = "lime";
col[6] = "turquoise";
col[7] = "coral";
col[8] = "blueviolet";
col[9] = "violet";
function chgCol() {
pos++;
if (pos0||pos9) {
pos = 0;
}
document.bgColor = col[pos];
setTimeout("chgCol()",5000);
/* Change above set to every 10 seconds (1000 = 1 sec) If
you wish to speed it up, lower the number. To slow it
down, raise the number. */
}
var yourwords = "不断变化背景色彩";var buffer1=" ";var buffer2=" ";var message1=buffer1+yourwords+buffer2;var dir = "left";var speed =150;function pingpong(){if (dir == "left") { message2=message1.substring(2,message1.length)+" "; window.status=message2; setTimeout("pingpong();",speed); message1=message2; if (message1.substring(0,1) == "*") dir="right"; }else { message2=" "+message1.substring(0,message1.length-2); window.status=message2; setTimeout("pingpong();",speed); message1=message2; if (message1.substring(message1.length-1,message1.length) == "*") dir="left"; }}// --/script
检测浏览器类型并调用不同的背景音乐[修改MIDI文件名][共1步]
====1、将以下代码加入HTML的body/body之间：
SCRIPT LANGUAGE="JavaScript"
!-- Begin
var MSIE=navigator.userAgent.indexOf("MSIE");
var NETS=navigator.userAgent.indexOf("Netscape");
var OPER=navigator.userAgent.indexOf("Opera");
if((MSIE-1) || (OPER-1)) {
document.write("BGSOUND SRC=sound.mid LOOP=INFINITE");
} else {
document.write("EMBED SRC=sound2.mid AUTOSTART=TRUE ");
document.write("HIDDEN=true VOLUME=100 LOOP=TRUE");
}
// End --
/SCRIPT
滚动背景[特别推荐][共1步][IE专用]先在页面中设置好背景图片然后再进行下一步
====1、将以下代码加入HEML的body/body之间：
script language="VBScript"
dim c,numgc
c=-100000
numgc=document.body.sourceIndex
sub SF
c=c+1
Document.all(numgc).style.BackgroundPosition= "0 " c
id=SetTimeOut("SF",16,"VBScript")
end sub
SF
/script
永远居中的背景图片[推荐][共1步][修改图片名称]
====1、将以下代码加入HEML的body/body之间：
STYLE TYPE="text/css"
!--
BODY {background-image: URL(图片名称.gif);
background-position: center;
background-repeat: no-repeat;
background-attachment: fixed;}
--
/STYLE
随机显示的背景图片[想别人每次看你页面时背景都不一样吗？][共1步]
====1、将以下代码加入HTML的head/head之间：
script LANGUAGE="JavaScript"
bg = new Array(2); //设定图片数量，如果图片数为3，这个参数就设为2，依次类推
bg[0] = 'bg1.gif' //显示的图片路径，可用http://
bg[1] = 'bg2.gif'
bg[2] = 'bg3.gif'
index = Math.floor(Math.random() * bg.length);
document.write("BODY BACKGROUND="+bg[index]+"");
/script
跟随屏幕移动的图像[推荐]修改图片名称和文字即可][共2步]
====1、将以下代码加入到HEML的head/head之间：
style type="text/css"
#floater {
position: absolute;
left: 500;
top: 146;
width: 125;
visibility: visible;
z-index: 10;
}/style
====2、将以下代码加入到HEML的body/body之间
div ID="floater" style="left: 590px; top: 158px"
p align="center"img SRC="想要显示的图片.gif" alt="图片显示的文字" WIDTH="125" HEIGHT="60"br
font color="#FF8040"图片下面的文字/font/p
/divscript LANGUAGE="JavaScript"
self.onError=null;
currentX = currentY = 0;
whichIt = null;
lastScrollX = 0; lastScrollY = 0;
NS = (document.layers) ? 1 : 0;
IE = (document.all) ? 1: 0;
!-- STALKER CODE --
function heartBeat() {
if(IE) { diffY = document.body.scrollTop; diffX = document.body.scrollLeft; }
if(NS) { diffY = self.pageYOffset; diffX = self.pageXOffset; }
if(diffY != lastScrollY) {
percent = .1 * (diffY - lastScrollY);
if(percent 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.floater.style.pixelTop += percent;
if(NS) document.floater.top += percent;
lastScrollY = lastScrollY + percent;
}
if(diffX != lastScrollX) {
percent = .1 * (diffX - lastScrollX);
if(percent 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.floater.style.pixelLeft += percent;
if(NS) document.floater.left += percent;
lastScrollX = lastScrollX + percent;
}
}
!-- /STALKER CODE --
!-- DRAG DROP CODE --
function checkFocus(x,y) {
stalkerx = document.floater.pageX;
stalkery = document.floater.pageY;
stalkerwidth = document.floater.clip.width;
stalkerheight = document.floater.clip.height;
if( (x stalkerx x (stalkerx+stalkerwidth)) (y stalkery y (stalkery+stalkerheight))) return true;
else return false;
}
function grabIt(e) {
if(IE) {
whichIt = event.srcElement;
while (whichIt.id.indexOf("floater") == -1) {
whichIt = whichIt.parentElement;
if (whichIt == null) { return true; }
}
whichIt.style.pixelLeft = whichIt.offsetLeft;
whichIt.style.pixelTop = whichIt.offsetTop;
currentX = (event.clientX + document.body.scrollLeft);
currentY = (event.clientY + document.body.scrollTop);
} else {
window.captureEvents(Event.MOUSEMOVE);
if(checkFocus (e.pageX,e.pageY)) {
whichIt = document.floater;
StalkerTouchedX = e.pageX-document.floater.pageX;
StalkerTouchedY = e.pageY-document.floater.pageY;
}
}
return true;
}
function moveIt(e) {
if (whichIt == null) { return false; }
if(IE) {
newX = (event.clientX + document.body.scrollLeft);
newY = (event.clientY + document.body.scrollTop);
distanceX = (newX - currentX); distanceY = (newY - currentY);
currentX = newX; currentY = newY;
whichIt.style.pixelLeft += distanceX;
whichIt.style.pixelTop += distanceY;
if(whichIt.style.pixelTop document.body.scrollTop) whichIt.style.pixelTop = document.body.scrollTop;
if(whichIt.style.pixelLeft document.body.scrollLeft) whichIt.style.pixelLeft = document.body.scrollLeft;
if(whichIt.style.pixelLeft document.body.offsetWidth - document.body.scrollLeft - whichIt.style.pixelWidth - 20) whichIt.style.pixelLeft = document.body.offsetWidth - whichIt.style.pixelWidth - 20;
if(whichIt.style.pixelTop document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5) whichIt.style.pixelTop = document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5;
event.returnValue = false;
} else {
whichIt.moveTo(e.pageX-StalkerTouchedX,e.pageY-StalkerTouchedY);
if(whichIt.left 0+self.pageXOffset) whichIt.left = 0+self.pageXOffset;
if(whichIt.top 0+self.pageYOffset) whichIt.top = 0+self.pageYOffset;
if( (whichIt.left + whichIt.clip.width) = (window.innerWidth+self.pageXOffset-17)) whichIt.left = ((window.innerWidth+self.pageXOffset)-whichIt.clip.width)-17;
if( (whichIt.top + whichIt.clip.height) = (window.innerHeight+self.pageYOffset-17)) whichIt.top = ((window.innerHeight+self.pageYOffset)-whichIt.clip.height)-17;
return false;
}
return false;
}
function dropIt() {
whichIt = null;
if(NS) window.releaseEvents (Event.MOUSEMOVE);
return true;
}
!-- DRAG DROP CODE --
if(NS) {
window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN);
window.onmousedown = grabIt;
window.onmousemove = moveIt;
window.onmouseup = dropIt;
}
if(IE) {
document.onmousedown = grabIt;
document.onmousemove = moveIt;
document.onmouseup = dropIt;
}
if(NS || IE) action = window.setInterval("heartBeat()",1);
/script
可以看一下
怎样用canvas特性 *** html5烟花的效果
1、熟悉canvas的API
2、知道怎么 *** 烟花效果
上边两条都会了就会做了。
或者，找个别人写的源码看看。前提是你要看得懂。
烟花属于粒子效果。
就是大量的小圆点，按照一定的规律运动，然后消失。有的可能会用到滤镜。
html烟花代码打开卡住
可能是代码的问题。
烟花代码打开卡住可能是代码不完整或者有误造成的，可以检查一下代码的完整性，或者重新输一个正确的代码。
礼花代码
我这里网速比较慢，打不开网页，你自己去看看吧，应该不会错的，希望能够帮到你
