<!DOCTYPE html><html> <head> <meta charset=utf-8 /> <!-- js引用包 --> <script src=http://libs.baidu.com/ ...
<!DOCTYPE html><html> <head> <meta charset='utf-8' /> <!-- js引用包 --> <script src='/images/loading.gif' data-original='http://libs.baidu.com/jquery/1.9.0/jquery.min.js'></script><style>> body { margin: 0; overflow: hidden}div { padding: 1px 5px; background: #333; position: absolute; z - index: 2; color: #555; font - family: arial}a { color: #ccf}a: hover { color: red}</style> <script>window.onload = function() { C = Math.cos; S = Math.sin; U = 0; w = window; j = document; d = j.getElementById("kele" + "yi_com"); c = d.getContext("2d"); W = d.width = w.innerWidth; H = d.height = w.innerHeight; c.fillRect(0, 0, W, H); c.globalCompositeOperation = "lighter"; c.lineWidth = 0.2; c.lineCap = "round"; var bool = 0, t = 0; d.onmousemove = function(e) { if (window.T) { if (D == 9) { D = Math.random() * 15; f(1); } clearTimeout(T); } X = e.pageX; Y = e.pageY; a = 0; b = 0; A = X, B = Y; R = (e.pageX / W * 999 >> 0) / 999; r = (e.pageY / H * 999 >> 0) / 999; U = e.pageX / H * 360 >> 0; D = 9; g = 360 * Math.PI / 180; T = setInterval(f = function(e) { c.save(); c.globalCompositeOperation = "source-over"; if (e != 1) { c.fillStyle = "rgba(0,0,0,0.02)"; c.fillRect(0, 0, W, H); } c.restore(); i = 25; while (i--) { c.beginPath(); if (D > 450 || bool) { if (!bool) { bool = 1; } if (D < 0.1) { bool = 0; } t -= g; D -= 0.1; } if (!bool) { t += g; D += 0.1; } q = (R / r - 1) * t; x = (R - r) * C(t) + D * C(q) + (A + (X - A) * (i / 25)) + (r - R); y = (R - r) * S(t) - D * S(q) + (B + (Y - B) * (i / 25)); if (a) { c.moveTo(a, b); c.lineTo(x, y) } c.strokeStyle = "hsla(" + (U % 360) + ",100%,50%,0.75)"; c.stroke(); a = x; b = y; } U -= 0.5; A = X; B = Y; }, 16); } j.onkeydown = function(e) { a = b = 0; R += 0.05 } d.onmousemove({ pageX: 300, pageY: 290 })}</script></head> <body> <div id="text"></div> <canvas id="keleyi_com"></canvas> </body></html>
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原标题：酷炫Html5旋转代码【转】
关键词：HTML
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