cssjshtml 黑客帝国背景 javascript
效果：
黑客帝国数字背景js
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>hk</title>
</head>
<body>
<canvas id='d1' height="1080" width="1920"
style="position:fixed;z-index:-2;filter: alpha(opacity:50);opacity: 0.5"></canvas>
<script>
var canvas = document.getElementById('d1');
var ctx = canvas.getContext('2d');
canvas.height = window.innerHeight;
canvas.width = window.innerWidth;
var texts = '0123456789'.split('');
var fontSize = 16;
var columns = canvas.width / fontSize;
var drops = [];
for (var x = 0; x < columns; x++) {
drops[x] = 1;
}
function draw() {
ctx.fillStyle = 'rgba(0, 0, 0, 0.05)';
ctx.fillRect(0, 0, canvas.width, canvas.height);
ctx.fillStyle = '#0F0';
ctx.font = fontSize + 'px arial';
for (var i = 0; i < drops.length; i++) {
var text = texts[Math.floor(Math.random() * texts.length)];
ctx.fillText(text, i * fontSize, drops[i] * fontSize);
if (drops[i] * fontSize > canvas.height || Math.random() > 0.95) {
drops[i] = 0;
}
drops[i]++;
}
}
setInterval(draw, 33);
</script>
</body>
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原始发表：2017/01/19 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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