代码:
<!DOCTYPE html><html lang="utf-8"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><head> ????<title>标题</title> ???</head> ????<body onload="draw()"> ???????<canvas id="myCanvus" width="200px" height="200px" style="border:1px dashed black;"> ???????????出现文字表示你的浏览器不支持HTML5 ???????</canvas> ????</body></html><script type="text/javascript"><!-- ???function draw(){ ???????var canvas=document.getElementById("myCanvus"); ???????var cxt=canvas.getContext("2d"); ???????cxt.fillStyle="#FFee00"; ???????cxt.beginPath(); ???????cxt.arc(100,100,65,0,Math.PI*1,true); ???????cxt.moveTo(100,100); ???????cxt.lineTo(195,100); ???????cxt.moveTo(100,100); ???????cxt.lineTo(100,5); ???????cxt.moveTo(100,100); ???????cxt.lineTo(5,100); ???????cxt.moveTo(100,100); ???????cxt.lineTo(165,35); ???????cxt.moveTo(100,100); ???????cxt.lineTo(35,35); ???????cxt.stroke(); ???????????????cxt.closePath(); ???????cxt.fill(); ???}//--></script>HTML5绘图初试水
原文地址：http://www.cnblogs.com/xiandedanteng/p/7465887.html