用html编写烟花特效代码源（【HTML】2023跨年烟花代码）
导读：*2022年圣诞节到来啦，很高兴这次我们又能一起度过~ 前言...
*2022年圣诞节到来啦 ，很高兴这次我们又能一起度过~
前言
时光荏苒 ，白驹过隙 。
2022这一年又在忙碌中度过了 ，过去的一年 ，我们同努力 ，我们共欢笑 ，每一次成功都蕴藏着我们辛勤的劳动 。
新的一年即将来到 ，我们不能停滞不前 ，一味只是骄傲 。愿大家与时俱进 ，拼搏不懈 ，共创新的辉煌！
借着新年到来的喜庆 ，给大家分享一个新年烟花的前端代码 ，快拿着代码展示给你的朋友们看吧！！
转眼间已经到了2022的尾巴 ，这一年对于国家来说丰富充实,冬奥会在北京举行 、中国共产党第二十次全国代表大会召开 、社会共同抗击疫情的第三年 、我国完成天宫空间站建造……对于我们每一个个体 ，2022也承载着我们的快乐与悲伤 ，它是无法替代的 。
新的一年马上就要到了 ，让我们告别2022 ，迎接2023！
希望2023,全糖去冰 。效果展示
一 、夜景烟花绽放动画效果
HTML源码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.yuucn.com/wp-content/uploads/2023/04/1682050333-8676df6182000cb.png" alt="" /></div> <img src="img/moon.png" alt="" id="moon" style="visibility: hidden;"/> <div style="display:none"> <div class="shape">新年快乐</div> <div class="shape">合家幸福</div> <div class="shape">万事如意</div> <div class="shape">心想事成</div> <div class="shape">财源广进</div> </div> </div> <script> var canvas = document.getElementById("cas"); var ocas = document.createElement("canvas"); var octx = ocas.getContext("2d"); var ctx = canvas.getContext("2d"); ocas.width = canvas.width = window.innerWidth; ocas.height = canvas.height = 700; var bigbooms = []; window.onload = function(){ initAnimate() } function initAnimate(){ drawBg(); lastTime = new Date(); animate(); } var lastTime; function animate(){ ctx.save(); ctx.fillStyle = "rgba(0,5,24,0.1)"; ctx.fillRect(0,0,canvas.width,canvas.height); ctx.restore(); var newTime = new Date(); if(newTime-lastTime>500+(window.innerHeight-767)/2){ var random = Math.random()*100>2?true:false; var x = getRandom(canvas.width/5 , canvas.width*4/5); var y = getRandom(50 , 200); if(random){ var bigboom = new Boom(getRandom(canvas.width/3,canvas.width*2/3) ,2,"#FFF" , {x:x , y:y}); bigbooms.push(bigboom) } else { var bigboom = new Boom(getRandom(canvas.width/3,canvas.width*2/3) ,2,"#FFF" , {x:canvas.width/2 , y:200} , document.querySelectorAll(".shape")[parseInt(getRandom(0, document.querySelectorAll(".shape").length))]); bigbooms.push(bigboom) } lastTime = newTime; console.log(bigbooms) } stars.foreach(function(){ this.paint(); }) drawMoon(); bigbooms.foreach(function(index){ var that = this; if(!this.dead){ this._move(); this._drawLight(); } else{ this.booms.foreach(function(index){ if(!this.dead) { this.moveTo(index); } else if(index === that.booms.length-1){ bigbooms[bigbooms.indexOf(that)] = null; } }) } }); raf(animate); } function drawMoon(){ var moon = document.getElementById("moon"); var centerX = canvas.width-200 , centerY = 100 , width = 80; if(moon.complete){ ctx.drawImage(moon , centerX , centerY , width , width ) } else { moon.onload = function(){ ctx.drawImage(moon ,centerX , centerY , width , width) } } var index = 0; for(var i=0;i<10;i++){ ctx.save(); ctx.beginPath(); ctx.arc(centerX+width/2 , centerY+width/2 , width/2+index , 0 , 2*Math.PI); ctx.fillStyle="rgba(240,219,120,0.005)"; index+=2; ctx.fill(); ctx.restore(); } } Array.prototype.foreach = function(callback){ for(var i=0;i<this.length;i++){ if(this[i]!==null) callback.apply(this[i] , [i]) } } var raf = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function (callback) { window.setTimeout(callback, 1000 / 60); }; canvas.onclick = function(){ var x = event.clientX; var y = event.clientY; var bigboom = new Boom(getRandom(canvas.width/3,canvas.width*2/3) ,2,"#FFF" , {x:x , y:y}); bigbooms.push(bigboom) } // canvas.addEventLisener("touchstart" , function(event){ // var touch = event.targetTouches[0]; // var x = event.pageX; // var y = event.pageY; // var bigboom = new Boom(getRandom(canvas.width/3,canvas.width*2/3) ,2,"#FFF" , {x:x , y:y}); // bigbooms.push(bigboom) // }) var Boom = function(x,r,c,boomArea,shape){ this.booms = []; this.x = x; this.y = (canvas.height+r); this.r = r; this.c = c; this.shape = shape || false; this.boomArea = boomArea; this.theta = 0; this.dead = false; this.ba = parseInt(getRandom(80 , 200)); } Boom.prototype = { _paint:function(){ ctx.save(); ctx.beginPath(); ctx.arc(this.x,this.y,this.r,0,2*Math.PI); ctx.fillStyle = this.c; ctx.fill(); ctx.restore(); }, _move:function(){ var dx = this.boomArea.x - this.x , dy = this.boomArea.y - this.y; this.x = this.x+dx*0.01; this.y = this.y+dy*0.01; if(Math.abs(dx)<=this.ba && Math.abs(dy)<=this.ba){ if(this.shape){ this._shapBoom(); } else this._boom(); this.dead = true; } else { this._paint(); } }, _drawLight:function(){ ctx.save(); ctx.fillStyle = "rgba(255,228,150,0.3)"; ctx.beginPath(); ctx.arc(this.x , this.y , this.r+3*Math.random()+1 , 0 , 2*Math.PI); ctx.fill(); ctx.restore(); }, _boom:function(){ var fragNum = getRandom(30 , 200); var style = getRandom(0,10)>=5? 1 : 2; var color; if(style===1){ color = { a:parseInt(getRandom(128,255)), b:parseInt(getRandom(128,255)), c:parseInt(getRandom(128,255)) } } var fanwei = parseInt(getRandom(300, 400)); for(var i=0;i<fragNum;i++){ if(style===2){ color = { a:parseInt(getRandom(128,255)), b:parseInt(getRandom(128,255)), c:parseInt(getRandom(128,255)) } } var a = getRandom(-Math.PI, Math.PI); var x = getRandom(0, fanwei) * Math.cos(a) + this.x; var y = getRandom(0, fanwei) * Math.sin(a) + this.y; var radius = getRandom(0 , 2) var frag = new Frag(this.x , this.y , radius , color , x , y ); this.booms.push(frag); } }, _shapBoom:function(){ var that = this; putValue(ocas , octx , this.shape , 5, function(dots){ var dx = canvas.width/2-that.x; var dy = canvas.height/2-that.y; for(var i=0;i<dots.length;i++){ color = {a:dots[i].a,b:dots[i].b,c:dots[i].c} var x = dots[i].x; var y = dots[i].y; var radius = 1; var frag = new Frag(that.x , that.y , radius , color , x-dx , y-dy); that.booms.push(frag); } }) } } function putValue(canvas , context , ele , dr , callback){ context.clearRect(0,0,canvas.width,canvas.height); var img = new Image(); if(ele.innerHTML.indexOf("img")>=0){ img.src = ele.getElementsByTagName("img")[0].src; imgload(img , function(){ context.drawImage(img , canvas.width/2 - img.width/2 , canvas.height/2 - img.width/2); dots = getimgData(canvas , context , dr); callback(dots); }) } else { var text = ele.innerHTML; context.save(); var fontSize =200; context.font = fontSize+"px 宋体 bold"; context.textAlign = "center"; context.textBaseline = "middle"; context.fillStyle = "rgba("+parseInt(getRandom(128,255))+","+parseInt(getRandom(128,255))+","+parseInt(getRandom(128,255))+" , 1)"; context.fillText(text , canvas.width/2 , canvas.height/2); context.restore(); dots = getimgData(canvas , context , dr); callback(dots); } } function imgload(img , callback){ if(img.complete){ callback.call(img); } else { img.onload = function(){ callback.call(this); } } } function getimgData(canvas , context , dr){ var imgData = context.getImageData(0,0,canvas.width , canvas.height); context.clearRect(0,0,canvas.width , canvas.height); var dots = []; for(var x=0;x<imgData.width;x+=dr){ for(var y=0;y<imgData.height;y+=dr){ var i = (y*imgData.width + x)*4; if(imgData.data[i+3] > 128){ var dot = {x:x , y:y , a:imgData.data[i] , b:imgData.data[i+1] , c:imgData.data[i+2]}; dots.push(dot); } } } return dots; } function getRandom(a , b){ return Math.random()*(b-a)+a; } var maxRadius = 1 , stars=[]; function drawBg(){ for(var i=0;i<100;i++){ var r = Math.random()*maxRadius; var x = Math.random()*canvas.width; var y = Math.random()*2*canvas.height - canvas.height; var star = new Star(x , y , r); stars.push(star); star.paint() } } var Star = function(x,y,r){ this.x = x;this.y=y;this.r=r; } Star.prototype = { paint:function(){ ctx.save(); ctx.beginPath(); ctx.arc(this.x , this.y , this.r , 0 , 2*Math.PI); ctx.fillStyle = "rgba(255,255,255,"+this.r+")"; ctx.fill(); ctx.restore(); } } var focallength = 250; var Frag = function(centerX , centerY , radius , color ,tx , ty){ this.tx = tx; this.ty = ty; this.x = centerX; this.y = centerY; this.dead = false; this.centerX = centerX; this.centerY = centerY; this.radius = radius; this.color = color; } Frag.prototype = { paint:function(){ ctx.save(); ctx.beginPath(); ctx.arc(this.x , this.y , this.radius , 0 , 2*Math.PI); ctx.fillStyle = "rgba("+this.color.a+","+this.color.b+","+this.color.c+",1)"; ctx.fill() ctx.restore(); }, moveTo:function(index){ this.ty = this.ty+0.3; var dx = this.tx - this.x , dy = this.ty - this.y; this.x = Math.abs(dx)<0.1 ? this.tx : (this.x+dx*0.1); this.y = Math.abs(dy)<0.1 ? this.ty : (this.y+dy*0.1); if(dx===0 && Math.abs(dy)<=80){ this.dead = true; } this.paint(); } } </script> </body> </html>再新建文件夹img把以下两张图片放进去
city.png
moon.png
2023年(新年)春节倒计时代码
2023年新年倒计时HTML源代码 ，2023年春节倒计时代码 ，直接运行index.html即可 。
源码
NewYear.css
/*初始化*/ * { padding: 0; margin: 0 auto; } /*背景色*/ body, html { background: url(./img/newyear.png) no-repeat; background-size: 100% 100%; background-attachment: fixed; /* background-color: black; */ } /*父盒子*/ .fa { color:#6c5ce7; margin-top: 200px; background-color: rgba(0, 17, 17, 0.5); /*边框圆角*/ border-radius: 80px; /*伸缩布局*/ display: flex; /*改变主轴方向 竖排*/ flex-direction: column; } .fir { margin-left: 620px; margin-bottom: 100px; font-size: 80px; } .fa .sj { /*伸缩布局*/ display: flex; /*改变主轴方向*/ flex-direction: column; } .fa .sj div { width: 100%; /*伸缩布局*/ display: flex; /*主轴排列方式*/ justify-content: center; color: black; margin-bottom: 60px; /*多行侧轴排列方式*/ align-content: space-around; color:#ff7675; font-size: 55px; } .fa .sj .zi { color:#d63031; }index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>新年倒计时</title> <link rel="stylesheet" href="NewYear.css"> <script src="NewYear.js"></script> </head> <body> <div class="fa"> <span class="fir">距离2023春节(1-22)还有</span> <div class="sj"> <div><span></span><span class="zi">天</span></div> <div><span></span><span class="zi">时</span></div> <div><span></span><span class="zi">分</span></div> <div><span></span><span class="zi">秒</span></div> </div> </div> </body> </html>2023除夕倒计时
效果展示
源码
<!doctype html> <html> <head> <meta charset="utf-8"> <title>新年快乐</title> <style> body{ overflow: hidden; margin: 0; } h1{ position: fixed; top: 30%; left: 0; width: 100%; text-align: center; transform:translateY(-50%); font-family: Love Ya Like A Sister, cursive; font-size: 60px; color: #c70012; padding: 0 20px; } h1 span{ position: fixed; left: 0; width: 100%; text-align: center; margin-top:30px; font-size:40px; } </style> </head> <body> <h1 id="h1"></h1> <canvas></canvas> <script> var canvas = document.querySelector("canvas"), ctx = canvas.getContext("2d"); var ww,wh; function onResize(){ ww = canvas.width = window.innerWidth; wh = canvas.height = window.innerHeight; } ctx.strokeStyle = "pink"; ctx.shadowBlur = 25; ctx.shadowColor = "hsla(0, 100%, 60%,0.5)"; var precision = 100; var hearts = []; var mouseMoved = false; function onMove(e){ mouseMoved = true; if(e.type === "touchmove"){ hearts.push(new Heart(e.touches[0].clientX, e.touches[0].clientY)); hearts.push(new Heart(e.touches[0].clientX, e.touches[0].clientY)); } else{ hearts.push(new Heart(e.clientX, e.clientY)); hearts.push(new Heart(e.clientX, e.clientY)); } } var Heart = function(x,y){ this.x = x || Math.random()*ww; this.y = y || Math.random()*wh; this.size = Math.random()*2 + 1; this.shadowBlur = Math.random() * 10; this.speedX = (Math.random()+0.2-0.6) * 8; this.speedY = (Math.random()+0.2-0.6) * 8; this.speedSize = Math.random()*0.05 + 0.01; this.opacity = 1; this.vertices = []; for (var i = 0; i < precision; i++) { var step = (i / precision - 0.5) * (Math.PI * 2); var vector = { x : (15 * Math.pow(Math.sin(step), 3)), y : -(13 * Math.cos(step) - 5 * Math.cos(2 * step) - 2 * Math.cos(3 * step) - Math.cos(4 * step)) } this.vertices.push(vector); } } Heart.prototype.draw = function(){ this.size -= this.speedSize; this.x += this.speedX; this.y += this.speedY; ctx.save(); ctx.translate(-1000,this.y); ctx.scale(this.size, this.size); ctx.beginPath(); for (var i = 0; i < precision; i++) { var vector = this.vertices[i]; ctx.lineTo(vector.x, vector.y); } ctx.globalAlpha = this.size; ctx.shadowBlur = Math.round((3 - this.size) * 10); ctx.shadowColor = "hsla(0, 100%, 60%,0.5)"; ctx.shadowOffsetX = this.x + 1000; ctx.globalCompositeOperation = "screen" ctx.closePath(); ctx.fill() ctx.restore(); }; function render(a){ requestAnimationFrame(render); hearts.push(new Heart()) ctx.clearRect(0,0,ww,wh); for (var i = 0; i < hearts.length; i++) { hearts[i].draw(); if(hearts[i].size <= 0){ hearts.splice(i,1); i--; } } } onResize(); window.addEventListener("mousemove", onMove); window.addEventListener("touchmove", onMove); window.addEventListener("resize", onResize); requestAnimationFrame(render); window.onload=function starttime(){ time(h1,2023/1/21); // 2023年春节时间 ptimer = setTimeout(starttime,1000); // 添加计时器 } function time(obj,futimg){ var nowtime = new Date().getTime(); // 现在时间转换为时间戳 var futruetime = new Date(futimg).getTime(); // 未来时间转换为时间戳 var msec = futruetime-nowtime; // 毫秒 未来时间-现在时间 var time = (msec/1000); // 毫秒/1000 var day = parseInt(time/86400); // 天 24*60*60*1000 var hour = parseInt(time/3600)-24*day; // 小时 60*60 总小时数-过去的小时数=现在的小时数 var minute = parseInt(time%3600/60); // 分 -(day*24) 以60秒为一整份 取余 剩下秒数 秒数/60 就是分钟数 var second = parseInt(time%60); // 以60秒为一整份 取余 剩下秒数 obj.innerHTML="<br>2023年<br>除夕倒计时：<br>"+day+"天"+hour+"小时"+minute+"分"+second+"秒"+"<br><span>善良 勇敢 优秀 决不妥协<br>祝你也祝我<br>" return true; } </script> <audio id="bgmusic" src="http://music.163.com/song/media/outer/url?id=1851244378.mp3" autoplay="autoplay" loop="loop" style="display: block; width: 3%; height:3%;"></audio> <script type="text/javascript"> document.addEventListener(DOMContentLoaded, function () { function audioAutoPlay() { var audio = document.getElementById(bgmusic); audio.play(); document.addEventListener("WeixinJSBridgeReady", function () { audio.play(); }, false); } audioAutoPlay(); }); </script> </body> </html>宇宙星空-效果展示
距离2023.1.1还有27天（天数我是乱写的 ，并不是按照文章发布时间来写的 ，大家可以自己修改源码）
1.源码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <script> var count = document.getElementsByClassName(main); var times0 = document.getElementsByClassName(time); var inputtime = +new Date("2023/01/01 00:00:00"); console.log(inputtime); var timer = null; clearInterval(timer) timer = setInterval(countdown,1000) function countdown(){ var nowtime = +new Date(); var times = parseInt((inputtime - nowtime ) / 1000); if(times >= 0){ var d = parseInt(times/60/60/24); d = d < 10 ? 0 + d : d ; var h = parseInt(times/60 /60%24); h = h < 10 ? 0 + h : h ; var m = parseInt(times/60%60); m = m < 10 ? 0 + m : m ; var s = parseInt(times%60); s = s < 10 ? 0 + s : s ; times0[0].innerHTML = d; times0[1].innerHTML = h; times0[2].innerHTML = m; times0[3].innerHTML = s; }else{ clearInterval(timer) } } </script> <style> *{ margin: 0%; padding: 0%; } body{ height: 100vh; width: 100%; display: flex; align-items: center; justify-content: center; } .block{ display: inline-block; margin-left: 50px; } .block p{ font-size: 40px; color: aliceblue; font-weight: bolder; text-align: center; } .block a{ font-size: 20px; color: aliceblue; } #nyc{ color: aliceblue; font-size: 50px; } </style> </head> <body background="图片\10523Q492-0.jpg"> <div class="main"> <p id="nyc"> New Year Countdown</p> <br> <div class="block"> <p class="time">00</p> <a>days</a> </div> <div class="block"> <p class="time">00</p> <a>hours</a> </div> <div class="block"> <p class="time">00</p> <a>minutes</a> </div> <div class="block"> <p class="time">00</p> <a>seconds</a> </div> </div> </body> </html>2.思路
创建一个计时器函数, 计算出当前时间和目标时间的距离.
利用"setInterval"方法不断调用计时器函数,达到数字变换, 也就是倒计时的效果.
3.步骤(js部分)
var count = document.getElementsByClassName(main); var times0 = document.getElementsByClassName(time); var inputtime = +new Date("2023/01/01 00:00:00"); var nowtime = +new Date(); console.log(inputtime); var timer = null; clearInterval(timer) timer = setInterval(countdown,1000)A."var"定义变量
利用"document.getElementsByClassName()"方法提取中已经创建的元素作为js对象.
类似的方法有:B. 获取时间
"+new Date()"方法可以获取当前时间距离"1970年1月1日0时0分0秒’的毫秒数, 利用这点可以获取当前时间.
括号中若添加具体日期(写法: 年/月/日 时:分:秒 ), 则可以获取具体日期距离"1970年1月1日0时0分0秒’的毫秒数, 利用这点可以获取目标时间. function countdown(){ var times = parseInt((inputtime - nowtime ) / 1000); if(times >= 0){ var d = parseInt(times/60/60/24); d = d < 10 ? 0 + d : d ; var h = parseInt(times/60 /60%24); h = h < 10 ? 0 + h : h ; var m = parseInt(times/60%60); m = m < 10 ? 0 + m : m ; var s = parseInt(times%60); s = s < 10 ? 0 + s : s ; times0[0].innerHTML = d; times0[1].innerHTML = h; times0[2].innerHTML = m; times0[3].innerHTML = s; }else{ clearInterval(timer) } }C.创建计时器函数
计算时间的距离:
(目标时间-当前时间)/1000=时间距离 var times = parseInt((inputtime - nowtime ) / 1000);时间距离转换成 天数,时数,分数,秒数:
并做一个简单判断:
如果计算出来的数字小于10, 则在数字面前添加一个0一保持美观和谐. var d = parseInt(times/60/60/24); d = d < 10 ? 0 + d : d ; var h = parseInt(times/60 /60%24); h = h < 10 ? 0 + h : h ; var m = parseInt(times/60%60); m = m < 10 ? 0 + m : m ; var s = parseInt(times%60); s = s < 10 ? 0 + s : s ;将计算所得数字添加到页面中:
利用到了 "innerhtml"方法, 主要用于改变中已经定义的元素.
最后做一个总的判断:
如果时间距离大于零, 则做计算, 展现倒计时效果.
如果距离等于零, 则对函数的反复调用停止, 计时终止 if(times >= 0){ }else{ clearInterval(timer) }D.反复调用计时器函数
var timer = null; clearInterval(timer) timer = setInterval(countdown,1000) var timer = null; clearInterval(timer) timer = setInterval(countdown,1000)"setInterval()"方法中有两个参数:
第一个: 将要调用的函数名;
第二个: 调用的间隔时间, 单位为一毫秒, 自然, “1000"即代表"1秒钟调用一次 ”
"clearInterval(timer)"指在调用之前将调用器归零更多干货🚀
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