效果图如下：
代码如下：
<!DOCTYPE html>
<html>
<head>
<title>黑客帝国效果</title>
</head>
<body>
<canvas id="canvas"></canvas>
<style type="text/css">
body{margin: 0; padding: 0; overflow: hidden;}
</style>
<script type="text/javascript">
var canvas = document.getElementById('canvas');
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