之前看到一个css和js运用的结果练了一下,演示:
此次用canvas玩一下,觉得也还不错,
Github传送门:https://github.com/EchoLsx/hacker
演示地点:http://codepen.io/echo_lsx/pen/ZOaOyZ
<canvas id="c"></canvas>
<!-- 引荐开源CDN来拔取需援用的外部JS //-->
<script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>
/*Javascript代码片断*/
var c = document.getElementById("c");
var ctx = c.getContext("2d");
//全屏
c.height = window.innerHeight;
c.width = window.innerWidth;
//笔墨
var txts = "101010110101";
//转为数组
txts = txts.split("");
var font_size = 16;
var columns = c.width/font_size;
//用于盘算输出笔墨时坐标,所以长度即为列数
var drops = [];
//初始值
for(var x = 0; x < columns; x++)
drops[x] = 1;
//输出笔墨
function draw()
{
//让背景逐步由通明到不通明
ctx.fillStyle = "rgba(0, 0, 0, 0.05)";
ctx.fillRect(0, 0, c.width, c.height);
ctx.fillStyle = "#0F0"; //笔墨色彩
ctx.font = font_size + "px arial";
//逐行输出笔墨
for(var i = 0; i < drops.length; i++)
{
//随机取要输出的笔墨
var text = txts[Math.floor(Math.random()*txts.length)];
//输出笔墨,注重坐标的盘算
ctx.fillText(text, i*font_size, drops[i]*font_size);
//假如绘满一屏或随机数大于0.95(此数可自行调解,结果会差别)
if(drops[i]*font_size > c.height || Math.random() >0.95)
drops[i] = 0;
//用于Y轴坐标增添
drops[i]++;
}
}
setInterval(draw, 100);