八卦图<body>
<canvas width="800" height="600" id="canvas">
<p>您的浏览器不支持canvas</p>
</canvas>
</body>八卦图八卦图<body>
<canvas width="800" height="600" id="canvas">
<p>您的浏览器不支持canvas</p>
</canvas>
</body>
