效果
他是动的哈，上传gif太大，CSDN不让传，所以只放了图片
代码
<!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <title>黑客</title> <style type="text/css"> * { margin: 0; padding: 0; } body { background: black; } canvas { display: block; } </style> </head> <body> <canvas id="c"></canvas> <script type="text/javascript"> var c = document.getElementById("c"); var ctx = c.getContext("2d"); c.height = window.innerHeight; c.width = window.innerWidth; var chinese = "01011001011"; chinese = chinese.split(""); var font_size = 10; var columns = c.width / font_size; var drops = []; for (var i = 0; i < columns; i++) drops[i] = 1; function draw() { ctx.fillStyle = "rgba(0,0,0,0.05)"; ctx.fillRect(0, 0, c.width, c.height); ctx.fillStyle = "#0F0"; ctx.font = font_size + "px arial"; for (var i = 0; i < drops.length; i++) { var text = chinese[Math.floor(Math.random() * chinese.length)]; ctx.fillText(text, i * font_size, drops[i] * font_size); if (drops[i] * font_size > c.height && Math.random() > 0.975) drops[i] = 0; drops[i]++; } } setInterval(draw, 50); </script> </body> </html>
