一眨眼，马上就2023年了，祝大家在新的一年里：身体健康平安，生活充实饱满，事业步步高升，心情阳光灿烂，财运滚滚而来，家庭美满幸福，新年开心快乐!
本文将给大家分享一些跨年代码，基础效果只有倒计时，高级效果加入了烟花和雪花。
高级效果1下载地址：2023跨年烟花+雪花
高级效果2下载地址：2023跨年跳转烟花文字

基础效果

基础效果预览

文字、背景音乐、倒计时时间可以自己更改。
在这里插入图片描述

上面只是一个动图，时间会一直倒计时的。背景音乐是黄霄云的星辰大海（音乐链接可能失效，自己改audio里面的音乐链接，找不到音乐链接的去看我的文章：如何找音乐链接）。

基础效果完整代码

更高级的倒计时代码—>>>新年倒计时合集
本文基础效果完整代码：

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>新年快乐</title><!-- 这是网页标题 -->
<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> <!--canvas 画布-->

<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 = "red";
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,'2023/1/1');     // 2021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>距离2023年还有：<br>"+day+"天"+hour+"小时"+minute+"分"+second+"秒"+"<br><span>愿我所念的人平安喜乐，<br>愿我所想的事顺心如意。<br>May the people I think of be safe and happy, <br>and may the things I think of be all right.</span>"
        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">
  function toggleSound() {
      
      
            var music = document.getElementById("bgmusic");//获取ID
                console.log(music);
                console.log(music.paused);
            if (music.paused) {
      
       //判读是否播放
                music.paused=false;
                music.play(); //没有就播放
            }

        }
setInterval("toggleSound()",1);
</script>
</body>
</html>