通过html5的canvas绘制圆形图案
<!DOCTYPE html> <html> <body> <canvas id="myCanvas" width="200" height="100" style="border:1px solid #d3d3d3;"> Your browser does not support the HTML5 canvas tag.</canvas> <script type="text/javascript"> var c=document.getElementById("myCanvas"); var ctx=c.getContext("2d"); ctx.beginPath(); ctx.arc(95,50,40,0,2*Math.PI); ctx.stroke(); </script> </body> </html>