超级华丽的html5的页面

2024-03-01    分类: 网站建设

关于html5,相信大家都早已不陌生,今天创新互联就来带大家见识一下,我们在DW里编辑一段代码:XML/HTML Code复制内容到剪贴板    <!DOCTYPE html>  <html xmlns=”http://www.w3.org/1999/xhtml” lang=”en”>    <head>    <title>超级华丽的html5的页面</title>    <script type=”text/javascript”>    window.onload = function () {  C = Math.cos;  S = Math.sin;  U = 0;  canvas = document.getElementById(“myCanvas”);  c = canvas.getContext(“2d”);  var W = canvas.width = window.innerWidth;  var H = canvas.height = window.innerHeight;  c.fillRect(0, 0, W, H); // resize <canvas> and draw black rect (default)  c.globalCompositeOperation = “lighter”; // switch to additive color application  c.lineWidth = 0.2;//设置画笔的大小  c.lineCap = “round”;//设置圆滑  var bool = 0,  t = 0; // theta    canvas.onmousemove = function (e) {  if(window.T) {  if(D==9) {  D=Math.random()*15; f(1); }  clearTimeout(T);  }  X = e.pageX; // grab mouse pixel coords  Y = e.pageY;  a=0; // previous coord.x  b=0; // previous coord.y  A = X, // original coord.x  B = Y; // original coord.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) { // decrease diameter    if(!bool) { // has hit maximum    bool = 1;    }    if(D < 0.1) { // has hit minimum    bool = 0;    }    t -= g; // decrease theta    D -= 0.1; // decrease size    }    if(!bool) {    t += g; // increase theta    D += 0.1; // increase size    }    q = (R / r – 1) * t;    x = (R – r) * C(t) + D * C(q) + (A + (X – A) * (i / 25)) + (r – R); // center on xy coords    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)”; // draw rainbow hypotrochoid    c.stroke();    a = x; // set previous coord.x    b = y; // set previous coord.y    }    U -= 0.5; // increment hue    A = X; // set original coord.x    B = Y; // set original coord.y    }, 16);    }    document.onkeydown = function(e) { a=b=0; R += 0.05 }  canvas.onmousemove({pageX:300, pageY:290})  }</script>  </head>  <body style=”margin:0px;padding:0px;width:100%;height:100%;overflow:hidden;”>  <canvas id=”myCanvas”></canvas>  </body>  </html>

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新闻名称:超级华丽的html5的页面
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