在这之前，根本不知道JavaScript具体到底有多重要，现在才明白JavaScript也很强大，从网上看了几个js写的网页小游戏，我都惊呆了，以后一定要好好学习js。。。。
<!DOCTYPE html>
<html>
<head>
<title></title>
<script type="text/javascript">
function drawAdidas(){
var c=document.getElementById('myCanvas');
var cxt=c.getContext('2d');
cxt.save();
cxt.beginPath();
cxt.arc(100,50,30,0,Math.PI*2,true);
cxt.fill();
cxt.beginPath();
cxt.strokeStyle='#c00';
cxt.lineWidth=3;
cxt.arc(100,50,20,0,Math.PI,false);
cxt.stroke();
cxt.beginPath();
cxt.fillStyle="#c00";
cxt.arc(90,45,3,0,Math.PI*2,true);
cxt.fill();
cxt.moveTo(113,45);
cxt.arc(110,45,3,0,Math.PI*2,true);
cxt.fill();
cxt.stroke();
cxt.moveTo(100,80);
cxt.lineTo(100,150);
cxt.moveTo(100,100);
cxt.lineTo(60,120);
cxt.moveTo(100,100);
cxt.lineTo(140,120);
cxt.moveTo(100,150);
cxt.lineTo(80,190);
cxt.moveTo(100,150);
cxt.lineTo(140,190);
cxt.stroke();
}
window.addEventListener("load",drawAdidas,true);
</script>
</head>
<body>
<canvas id="myCanvas" width="230" height="200" style="border:1px solid blue">
Your browser does not support the canvas element.
</canvas>
</body>
</html>
