canvas圆环进度条倒计时效果代码-html代码-BFW代码库

canvas圆环进度条倒计时效果代码

代码语言：html

所属分类：进度条

代码描述：canvas圆环进度条倒计时效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <style>
        body{background:#2e3032}canvas{display:block;margin:20px auto}
    </style>
</head>

<body>
    <canvas id="mycanvas" width="250" height="250"></canvas>


    <script>
        (function drawCanvas() {
      var b = document.getElementById("mycanvas");
      var f = b.getContext("2d");
      var g = b.width;
      var c = b.height;
      var e = 90;
      var j = Math.floor(e / 60);
      var k = e - (j * 60);
      var d = 0;
      var a = 270;
      var i = 360 / e;

      function h() {
          f.fillStyle = "#2e3032";
          f.fillRect(0, 0, g, c);
          f.beginPath();
          f.strokeStyle = "#252424";
          f.lineWidth = 14;
          f.arc(g / 2, c / 2, 100, (Math.PI / 180) * 0, (Math.PI / 180) * 360, false);
          f.stroke();
          f.closePath();
          f.beginPath();
          f.strokeStyle = "#df8209";
          f.lineWidth = 14;
          f.arc(g / 2, c / 2, 100, (Math.PI / 180) * 270, (Math.PI / 180) * a, false);
          f.stroke();
          f.closePath();
          grad = f.createRadialGradient(g / 2, c / 2, 80, g / 2, c / 2, 115);
          grad.addColorStop(0, "rgba(0,0,0,.4)");
          grad.addColorStop(0.5, "rgba(0,0,0,0)");
          grad.addColorStop(1, "rgba(0,0,0,0.4)");
          f.beginPath();
          f.strokeStyle = grad;
          f.lineWidth = 14;
          f.arc(g / 2, c / 2, 100, (Math.PI / 180) * 0, (Math.PI / 180) * 360, false);
          f.stroke();
          f.closePath();
          grad = f.createLinearGradient(g / 2, 0, g / 2, c);
          grad.addColorStop(0, "#6c6f72");
          grad.addColorStop(0.5, "#252424");
          f.beginPath();
          f.strokeStyle = g.........完整代码请登录后点击上方下载按钮下载查看