花了半個小時寫的代碼，這個html5 canvas新年煙花一定不會讓大家失望！

首先我們看下靜態的效果圖：

文章末尾有動態的效果圖，滑動即可看到！?

如果大家源碼下載效果出不來可以加我的前端學習群：733581373（可以下載煙花源碼以及直播學習編程技術）！

JavaScript代碼如下：

$(function() {var canvas = $('#canvas')[0];canvas.width = $(window).width();canvas.height = $(window).height();var ctx = canvas.getContext('2d');// resize$(window).on('resize', function() {canvas.width = $(window).width();canvas.height = $(window).height();ctx.fillStyle = '#000003';ctx.fillRect(0, 0, canvas.width, canvas.height);center = { x: canvas.width / 2, y: canvas.height / 2 };});// initctx.fillStyle = '#000003';ctx.fillRect(0, 0, canvas.width, canvas.height);// objectsvar listFire = [];var listFirework = [];var listText = [];var listSpecial = [];var listSpark = [];var lights = [];var fireNumber = 10;var center = { x: canvas.width / 2, y: canvas.height / 2 };var range = 100;var fired = 0;var onHold = 0;var supprise = false;var textIndex = 0;var actions = [makeDoubleFullCircleFirework, makePlanetCircleFirework, makeFullCircleFirework, makeDoubleCircleFirework, makeHeartFirework, makeCircleFirework, makeRandomFirework];for (var i = 0; i < fireNumber; i++) {var fire = {x: Math.random() * range / 2 - range / 4 + center.x,y: Math.random() * range * 2.5 + canvas.height,size: Math.random() + 0.5,fill: '#ff3',vx: Math.random() - 0.5,vy: -(Math.random() + 4),ax: Math.random() * 0.06 - 0.03,delay: Math.round(Math.random() * range) + range * 4,hold: false,alpha: 1,far: Math.random() * range + (center.y - range)};fire.base = {x: fire.x,y: fire.y,vx: fire.vx,vy: fire.vy};//listFire.push(fire);// play soundplayLaunchSound();}// define array of soundvar listExpSound = $('audio.exp');var listLaunchSound = $('audio.launch');// define array position of textvar textString = 'happylunarnewyear2018';var textMatrix = [4.5, 0, 5.5, 0, 6.5, 0, 7.5, 0, 8.5, 0,0, 1, 1, 1, 2, 1, 3, 1, 4, 1, 6, 1, 7, 1, 8, 1, 10, 1, 11, 1, 12, 1, 13, 1,5, 2, 6, 2, 7, 2, 8, 2]var chars = {h: [0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7,1, 3, 2, 3, 3, 3, 4, 3,5, 0, 5, 1, 5, 2, 5, 3, 5, 4, 5, 5, 5, 6, 5, 7],a: [2, 0, 2, 1, 2, 2, 1, 2, 1, 3, 1, 4, 1, 5, 0, 5, 0, 6, 0, 7, 2, 5,3, 0, 3, 1, 3, 2, 4, 2, 4, 3, 4, 4, 4, 1, 5, 5, 5, 6, 5, 7, 3, 5],p: [0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7,1, 0, 2, 0, 3, 0, 4, 1, 5, 2, 4, 3, 3, 4, 2, 4, 1, 4],y: [0, 0, 0, 1, 1, 1, 1, 2, 1, 3, 2, 3, 2, 4, 2, 5, 2, 6, 2, 7,3, 2, 3, 3, 4, 1, 4, 2, 5, 0, 5, 1],l: [0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7,1, 7, 2, 7, 3, 7, 4, 7, 5, 7],u: [0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6,1, 7, 2, 7, 3, 7, 4, 7,5, 0, 5, 1, 5, 2, 5, 3, 5, 4, 5, 5, 5, 6],n: [0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7,1, 1, 1, 2, 2, 2, 2, 3, 2, 4, 3, 4, 3, 5, 4, 5, 4, 6,5, 0, 5, 1, 5, 2, 5, 3, 5, 4, 5, 5, 5, 6, 5, 7],e: [0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7,1, 0, 2, 0, 3, 0, 4, 0, 5, 0,1, 3, 2, 3, 3, 3, 4, 3,1, 7, 2, 7, 3, 7, 4, 7, 5, 7],w: [0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 1, 6,2, 1, 2, 2, 2, 3, 2, 4, 2, 5, 2, 6, 2, 7, 3, 7,5, 0, 5, 1, 5, 2, 5, 3, 5, 4, 5, 5, 4, 5, 4, 6],r: [0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7,1, 0, 2, 0, 3, 0, 4, 1, 5, 2, 4, 3, 3, 4, 2, 4, 1, 4,1, 5, 2, 5, 3, 6, 4, 6, 5, 7],2: [0, 1, 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 5, 1, 5, 2, 5, 3,4, 3, 3, 3, 2, 3, 2, 4, 1, 4, 1, 5,0, 5, 0, 6, 0, 7, 1, 7, 2, 7, 3, 7, 4, 7, 5, 7, 5, 6],0: [0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6,1, 0, 2, 0, 3, 0, 4, 0,1, 7, 2, 7, 3, 7, 4, 7,5, 1, 5, 2, 5, 3, 5, 4, 5, 5, 5, 6],1: [1, 2, 2, 2, 2, 1, 3, 1, 3, 0,4, 0, 4, 1, 4, 2, 4, 3, 4, 4, 4, 5, 4, 6, 4, 7,1, 7, 2, 7, 3, 7, 5, 7],7: [0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0,5, 1, 5, 2, 5, 3, 4, 3, 4, 4,3, 4, 3, 5, 3, 6, 3, 7]}function initText() {var i = textIndex;var velocity = Math.random() * 0.25 + 1;var shift = { x: -(Math.random() + 2), y: -(Math.random() + 3) };var char = chars[textString[i]];var width = 80;var half = 6.5 * width;var left = textMatrix[i * 2] * width - half;var top = textMatrix[i * 2 + 1] * range * 1.2 - range * 2.4;for (var j = 0; j < fireNumber * char.length * 0.25; j++) {var rand = Math.floor(Math.random() * char.length * 0.5);var x = char[rand * 2] + shift.x;var y = char[rand * 2 + 1] + shift.y;var text = {x: center.x + left * 0.9,y: center.y + top,left: center.x + left,size: Math.random() + 0.5,fill: '#ff3',vx: x * (velocity + (Math.random() - 0.5) * 0.5),vy: y * (velocity + (Math.random() - 0.5) * 0.5),ay: 0.08,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5}text.base = {life: text.life,size: text.size,};text.direct = (text.left - text.x) * 0.08;listText.push(text);}// play soundplayExpSound();//lights.push({ x: center.x + left * 0.9, y: center.y + top, color: text.fill, radius: range * 2 });if (++textIndex < textString.length) {setTimeout(initText, 10);}else {textIndex = 0;}}function initSpark() {var x = Math.random() * range * 3 - range * 1.5 + center.x;var vx = Math.random() - 0.5;var vy = -(Math.random() + 4);var ax = Math.random() * 0.04 - 0.02;var far = Math.random() * range * 4 - range + center.y;var direct = ax * 10 * Math.PI;var max = fireNumber * 0.5;for (var i = 0; i < max; i++) {var special = {x: x,y: Math.random() * range * 0.25 + canvas.height,size: Math.random() + 2,fill: '#ff3',vx: vx,vy: vy,ax: ax,direct: direct,alpha: 1};special.far = far - (special.y - canvas.height);listSpecial.push(special);// play soundplayLaunchSound();}}function randColor() {var r = Math.floor(Math.random() * 256);var g = Math.floor(Math.random() * 256);var b = Math.floor(Math.random() * 256);var color = 'rgb($r, $g, $b)';color = color.replace('$r', r);color = color.replace('$g', g);color = color.replace('$b', b);return color;}function playExpSound() {var sound = listExpSound[Math.floor(Math.random() * listExpSound.length)];sound.volume = Math.random() * 0.4 + 0.1;sound.play();}function playLaunchSound() {setTimeout(function() {var sound = listLaunchSound[Math.floor(Math.random() * listLaunchSound.length)];sound.volume = 0.05;sound.play();}, 200);}function makeCircleFirework(fire) {var color = randColor();var velocity = Math.random() * 2 + 6;var max = fireNumber * 5;for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5,vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5,ay: 0.04,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 2};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}return color;}function makeDoubleCircleFirework(fire) {var color = randColor();var velocity = Math.random() * 2 + 8;var max = fireNumber * 3;for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5,vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5,ay: 0.04,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}color = randColor();velocity = Math.random() * 3 + 4;for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5,vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5,ay: 0.04,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}return color;}function makePlanetCircleFirework(fire) {var color = '#aa0609';var velocity = Math.random() * 2 + 4;var max = fireNumber * 2;for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5,vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5,ay: 0.04,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}max = fireNumber * 4;for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.cos(rad) * velocity * Math.random(),vy: Math.sin(rad) * velocity * Math.random(),ay: 0.04,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}max = fireNumber * 3;color = '#ff9';var rotate = Math.random() * Math.PI * 2;var vx = velocity * (Math.random() + 2);var vy = velocity * 0.6;for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max;// calc x, y for ellipsevar cx = Math.cos(rad) * vx + (Math.random() - 0.5) * 0.5;var cy = Math.sin(rad) * vy + (Math.random() - 0.5) * 0.5;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: cx * Math.cos(rotate) - cy * Math.sin(rotate), // rotate x ellipsevy: cx * Math.sin(rotate) + cy * Math.cos(rotate), // rotate y ellipseay: 0.02,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}return '#aa0609';}function makeFullCircleFirework(fire) {var color = randColor();var velocity = Math.random() * 8 + 8;var max = fireNumber * 3;for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5,vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5,ay: 0.06,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}max = fireNumber * Math.round(Math.random() * 4 + 4);for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.cos(rad) * velocity * Math.random(),vy: Math.sin(rad) * velocity * Math.random(),ay: 0.06,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}return color;}function makeDoubleFullCircleFirework(fire) {var color = randColor();var velocity = Math.random() * 8 + 8;var max = fireNumber * 3;for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5,vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5,ay: 0.04,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}color = randColor();velocity = Math.random() * 3 + 4;max = fireNumber * 2;for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5,vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5,ay: 0.06,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}max = fireNumber * 4;for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.cos(rad) * velocity * Math.random(),vy: Math.sin(rad) * velocity * Math.random(),ay: 0.06,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}return color;}function makeHeartFirework(fire) {var color = randColor();var velocity = Math.random() * 3 + 3;var max = fireNumber * 5;var rotate = Math.random() * Math.PI * 2;for (var i = 0; i < max; i++) {var rad = (i * Math.PI * 2) / max + rotate;var v, p;if (rad - rotate < Math.PI * 0.5) {p = (rad - rotate) / (Math.PI * 0.5);v = velocity + velocity * p;}else if (rad - rotate > Math.PI * 0.5 && rad - rotate < Math.PI) {p = (rad - rotate - Math.PI * 0.5) / (Math.PI * 0.5);v = velocity * (2 - p);}else if (rad - rotate > Math.PI && rad - rotate < Math.PI * 1.5) {p = (rad - rotate - Math.PI) / (Math.PI * 0.5);v = velocity * (1 - p);}else if (rad - rotate > Math.PI * 1.5 && rad - rotate < Math.PI * 2) {p = (rad - rotate - Math.PI * 1.5) / (Math.PI * 0.5);v = velocity * p;}else {v = velocity;}v = v + (Math.random() - 0.5) * 0.25;var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.cos(rad) * v,vy: Math.sin(rad) * v,ay: 0.02,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 1.5};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}return color;}function makeRandomFirework(fire) {var color = randColor();for (var i = 0; i < fireNumber * 5; i++) {var firework = {x: fire.x,y: fire.y,size: Math.random() + 1.5,fill: color,vx: Math.random() * 15 - 7.5,vy: Math.random() * -15 + 5,ay: 0.05,alpha: 1,life: Math.round(Math.random() * range / 2) + range / 2};firework.base = {life: firework.life,size: firework.size};listFirework.push(firework);}return color;}function makeSpark(special) {var color = special.fill;var velocity = Math.random() * 6 + 12;var max = fireNumber;for (var i = 0; i < max; i++) {var rad = (Math.random() * Math.PI * 0.3 + Math.PI * 0.35) + Math.PI + special.direct;var spark = {x: special.x,y: special.y,size: Math.random() + 1,fill: color,vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5,vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5,ay: 0.02,alpha: 1,rad: rad,direct: special.direct,chain: Math.round(Math.random() * 2) + 2,life: Math.round(Math.random() * range / 2) + range / 2};spark.base = {life: spark.life,velocity: velocity};listSpark.push(spark);}return color;}function chainSpark(parentSpark) {var color = parentSpark.fill;if (parentSpark.chain > 0) {var velocity = parentSpark.base.velocity * 0.6;var max = Math.round(Math.random() * 5);for (var i = 0; i < max; i++) {var rad = (Math.random() * Math.PI * 0.3 - Math.PI * 0.15) + parentSpark.rad + parentSpark.direct;var spark = {x: parentSpark.x,y: parentSpark.y,size: parentSpark.size * 0.6,fill: color,vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5,vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5,ay: 0.02,alpha: 1,rad: rad,direct: parentSpark.direct,chain: parentSpark.chain,life: parentSpark.base.life * 0.8};spark.base = {life: spark.life,size: spark.size,velocity: velocity};listSpark.push(spark);}if (Math.random() > 0.9 && parentSpark.chain > 1) {// play soundplayExpSound();}}return color;}(function loop() {requestAnimationFrame(loop);update();draw();})();function update() {// update fire logicfor (var i = 0; i < listFire.length; i++) {var fire = listFire[i];//if (fire.y <= fire.far) {// play soundplayExpSound();// case add fireworkfired++;var color = actions[Math.floor(Math.random() * actions.length)](fire);// lightlights.push({ x: fire.x, y: fire.y, color: color, radius: range * 2 });// resetfire.y = fire.base.y;fire.x = fire.base.x;// specialif (fired % 33 == 0) {initSpark();}// on holdsupprise = fired % 100 == 0 ? true : supprise;if (supprise) {fire.vx = 0;fire.vy = 0;fire.ax = 0;fire.hold = true;onHold++;}else {fire.vx = fire.base.vx;fire.vy = fire.base.vy;fire.ax = Math.random() * 0.06 - 0.03;// play soundplayLaunchSound();}}//if (fire.hold && fire.delay <= 0) {onHold--;fire.hold = false;fire.delay = Math.round(Math.random() * range) + range * 4;fire.vx = fire.base.vx;fire.vy = fire.base.vy;fire.ax = Math.random() * 0.06 - 0.03;fire.alpha = 1;// play soundplayLaunchSound();}else if (fire.hold && fire.delay > 0) {fire.delay--;}else {fire.x += fire.vx;fire.y += fire.vy;fire.vx += fire.ax;fire.alpha = (fire.y - fire.far) / fire.far;}}// update firework logicfor (var i = listFirework.length - 1; i >= 0; i--) {var firework = listFirework[i];if (firework) {firework.vx *= 0.9;firework.vy *= 0.9;firework.x += firework.vx;firework.y += firework.vy;firework.vy += firework.ay;firework.alpha = firework.life / firework.base.life;firework.size = firework.alpha * firework.base.size;firework.alpha = firework.alpha > 0.6 ? 1 : firework.alpha;//firework.life--;if (firework.life <= 0) {listFirework.splice(i, 1);}}}// supprise happy new year!if (supprise && onHold == 10) {supprise = false;setTimeout(initText, 3000);}// update text logicfor (var i = listText.length - 1; i >= 0; i--) {var text = listText[i];text.vx *= 0.9;text.vy *= 0.9;text.direct *= 0.9;text.x += text.vx + text.direct;text.y += text.vy;text.vy += text.ay;text.alpha = text.life / text.base.life;text.size = text.alpha * text.base.size;text.alpha = text.alpha > 0.6 ? 1 : text.alpha;//text.life--;if (text.life <= 0) {listText.splice(i, 1);}}// update special logicfor (var i = listSpecial.length - 1; i >= 0; i--) {var special = listSpecial[i];if (special.y <= special.far) {// play soundplayExpSound();// lightlights.push({ x: special.x, y: special.y, color: special.fill, alpha: 0.02, radius: range * 2 });//makeSpark(special);// remove from listlistSpecial.splice(i, 1);}else {special.x += special.vx;special.y += special.vy;special.vx += special.ax;special.alpha = (special.y - special.far) / special.far;}}// update spark logicfor (var i = listSpark.length - 1; i >= 0; i--) {var spark = listSpark[i];if (spark) {spark.vx *= 0.9;spark.vy *= 0.9;spark.x += spark.vx;spark.y += spark.vy;spark.vy += spark.ay;spark.alpha = spark.life / spark.base.life + 0.2;//spark.life--;if (spark.life < spark.base.life * 0.8 && spark.life > 0) {//spark.chain--;chainSpark(spark);}if (spark.life <= 0) {listSpark.splice(i, 1);}}}}function draw() {// clearctx.globalCompositeOperation = 'source-over';ctx.globalAlpha = 0.2;ctx.fillStyle = '#000003';ctx.fillRect(0, 0, canvas.width, canvas.height);// re-drawctx.globalCompositeOperation = 'screen';for (var i = 0; i < listFire.length; i++) {var fire = listFire[i];ctx.globalAlpha = fire.alpha;ctx.beginPath();ctx.arc(fire.x, fire.y, fire.size, 0, Math.PI * 2);ctx.closePath();ctx.fillStyle = fire.fill;ctx.fill();}for (var i = 0; i < listFirework.length; i++) {var firework = listFirework[i];ctx.globalAlpha = firework.alpha;ctx.beginPath();ctx.arc(firework.x, firework.y, firework.size, 0, Math.PI * 2);ctx.closePath();ctx.fillStyle = firework.fill;ctx.fill();}for (var i = 0; i < listSpecial.length; i++) {var special = listSpecial[i];ctx.globalAlpha = special.alpha;// ctx.beginPath();// ctx.arc(special.x, special.y, special.size, 0, Math.PI * 2);// ctx.closePath();// ctx.fill();ctx.fillStyle = special.fill;ctx.fillRect(special.x - special.size, special.y - special.size, special.size * 2, special.size *2);}for (var i = 0; i < listSpark.length; i++) {var spark = listSpark[i];ctx.globalAlpha = spark.alpha;// ctx.beginPath();// ctx.arc(spark.x, spark.y, spark.size, 0, Math.PI * 2);// ctx.closePath();// ctx.fill();ctx.fillStyle = spark.fill;ctx.fillRect(spark.x - spark.size, spark.y - spark.size, spark.size * 2, spark.size *2);}// light effectwhile (lights.length) {var light = lights.pop();var gradient = ctx.createRadialGradient(light.x, light.y, 0, light.x, light.y, light.radius);gradient.addColorStop(0, '#fff');gradient.addColorStop(0.2, light.color);gradient.addColorStop(0.8, 'rgba(0, 0, 0, 0)');gradient.addColorStop(1, 'rgba(0, 0, 0, 0)');ctx.globalAlpha = light.alpha ? light.alpha : 0.25;ctx.fillStyle = gradient;ctx.fillRect(light.x - light.radius, light.y - light.radius, light.radius * 2, light.radius * 2);}// supprise: HAPPY LUNAR NEW YEAR 2018!for (var i = 0; i < listText.length; i++) {var text = listText[i];ctx.globalAlpha = text.alpha;ctx.fillStyle = text.fill;ctx.fillRect(text.x - text.size, text.y - text.size, text.size * 2, text.size * 2);}} })

index首頁代碼如下：

<!DOCTYPE html> <html lang="en" > <head> <meta charset="UTF-8"> <title>新年快樂</title> <link rel="stylesheet" href="css/style.css"> </head><body><canvas id="canvas"></canvas><div class="block-audio"><audio class="exp" src="m/exp1.mp3" controls></audio><audio class="exp" src="m/exp1.mp3" controls></audio><audio class="exp" src="m/exp1.mp3" controls></audio><audio class="exp" src="m/exp2.mp3" controls></audio><audio class="exp" src="m/exp2.mp3" controls></audio><audio class="exp" src="m/exp2.mp3" controls></audio><audio class="exp" src="m/exp3.mp3" controls></audio><audio class="exp" src="m/exp3.mp3" controls></audio><audio class="exp" src="m/exp3.mp3" controls></audio><audio class="exp" src="m/exp4.mp3" controls></audio><audio class="exp" src="m/exp4.mp3" controls></audio><audio class="exp" src="m/exp4.mp3" controls></audio><audio class="exp" src="m/exp5.mp3" controls></audio><audio class="exp" src="m/exp5.mp3" controls></audio><audio class="exp" src="m/exp5.mp3" controls></audio><audio class="exp" src="m/exp6.mp3" controls></audio><audio class="exp" src="m/exp6.mp3" controls></audio><audio class="exp" src="m/exp6.mp3" controls></audio><audio class="exp" src="m/exp7.mp3" controls></audio><audio class="exp" src="m/exp7.mp3" controls></audio><audio class="exp" src="m/exp7.mp3" controls></audio><audio class="exp" src="m/exp8.mp3" controls></audio><audio class="exp" src="m/exp8.mp3" controls></audio><audio class="exp" src="m/exp8.mp3" controls></audio><audio class="launch" src="m/launch1.mp3" controls></audio><audio class="launch" src="m/launch1.mp3" controls></audio><audio class="launch" src="m/launch2.mp3" controls></audio><audio class="launch" src="m/launch2.mp3" controls></audio><audio class="launch" src="m/launch3.mp3" controls></audio><audio class="launch" src="m/launch3.mp3" controls></audio><audio class="launch" src="m/launch4.mp3" controls></audio><audio class="launch" src="m/launch4.mp3" controls></audio><audio class="launch" src="m/launch5.mp3" controls></audio><audio class="launch" src="m/launch5.mp3" controls></audio> </div><script type="text/javascript" src="js/jquery.min.js"></script> <script type="text/javascript" src="js/index.js"></script></body> </html>

css代碼如下：

canvas {display: block; }.block-audio {display: none; } body{padding: 0px;margin: 0px}

最后運行煙花特效動態圖如下：

?效果圖有點模糊， 但是真的好看，大家可以拿到源碼可以看看！

如果大家源碼下載效果出不來可以加我的前端學習群：733581373（可以下載煙花源碼以及直播學習編程技術）！

最后謝謝大家的支持！

總結

以上是生活随笔為你收集整理的html5 canvas带音效的新年烟花特效，真的好看极了的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。