<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd&qu ...
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html ="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>弧形描边渐变</title><script src='/images/loading.gif' data-original="js/modernizr.js"></script></head><body><script type="text/javascript">window.addEventListener('load',eventWindowLoaded,false);function eventWindowLoaded(){ canvasApp();}function canvasSupport(){ return Modernizr.canvas;}function canvasApp(){ if(!canvasSupport()){ return; }else{ var theCanvas = document.getElementById('canvas') var context = theCanvas.getContext("2d") } drawScreen(); function drawScreen(){ var gr = context.createRadialGradient(50,50,25,100,100,100); //添加颜色端点 gr.addColorStop(0,'rgb(255,0,0)'); gr.addColorStop(.5,'rgb(0,255,0)'); gr.addColorStop(1,'rgb(255,0,0)'); //应用fillStyle生成渐变 context.strokeStyle = gr; context.arc(100,100,50,(Math.PI/180)*0,(Math.PI/180)*360,false); context.stroke(); }}</script><canvas id="canvas" width="500" height="500">你的浏览器无法使用canvas小白童鞋；你的支持是我最大的快乐！！</canvas></body></html>
原标题：html5 canvas 弧形描边渐变
关键词：HTML
*特别声明：以上内容来自于网络收集，著作权属原作者所有，如有侵权，请联系我们：
admin#shaoqun.com
（#换成@）。
