黑客入侵代码大全（可复制代码）零基础到精通，收藏这一篇就够了-优快云博客

数字游民-前端：回忆黑客入侵（可复制代码）

这个画面是我对代码感兴趣的开始，

有很多实现方式，这段只是其中一种。

代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>黑客入侵动画代码</title>
    <style>
        body {
            margin: 0;
            overflow: hidden;
            background-color: black;
        }
        canvas {
            display: block;
        }
    </style>
</head>
<body>
    <canvas id="matrix"></canvas>

    <script>
        const canvas = document.getElementById('matrix');
        const ctx = canvas.getContext('2d');

        canvas.width = window.innerWidth;
        canvas.height = window.innerHeight;

        const katakana = '冫冖讠厂匚刂冂亻勹厶廴廾卩阝凵廴辶钅阝釒饣灬钅彳氵丬丬忄宀广艹土讠辶心尸走阝钅金禾彳ㄔ雨鱼饣豆火钅门马单鸟尸阝页风飞虫几阝骨革钅鱼微信公众号Lucky大师兄';
        const latin = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
        const nums = '一二三四五六七八九十';

        const alphabet = katakana + latin + nums;

        const fontSize = 16;
        const columns = canvas.width / fontSize;

        const rainDrops = [];

        for (let x = 0; x < columns; x++) {
            rainDrops[x] = 1;
        }

        const draw = () => {
            ctx.fillStyle = 'rgba(0, 0, 0, 0.05)';
            ctx.fillRect(0, 0, canvas.width, canvas.height);

            ctx.fillStyle = '#0F0';
            ctx.font = fontSize + 'px monospace';

            for (let i = 0; i < rainDrops.length; i++) {
                const text = alphabet.charAt(Math.floor(Math.random() * alphabet.length));
                ctx.fillText(text, i * fontSize, rainDrops[i] * fontSize);

                if (rainDrops[i] * fontSize > canvas.height && Math.random() > 0.975) {
                    rainDrops[i] = 0;
                }
                rainDrops[i]++;
            }
        };

        setInterval(draw, 30);

        window.addEventListener('resize', () => {
            canvas.width = window.innerWidth;
            canvas.height = window.innerHeight;
        });
    </script>
</body>
</html>