canvasのサンプル
html5のcanvasで線を描く。 <head> <title>HTML5 canvas</title> </head> <body> <div align="center"> <h1>sample</h1> </div> <div align="center"> <canvas id="canvas" width="200" height="200" > <p>error</p> </canvas> </div> <script> var example = document.getElementById('canvas'); var context = e…</body>
