W3School TIY
编辑您的代码：
<!DOCTYPE HTML> <html> <body> <canvas id="myCanvas">your browser does not support the canvas tag </canvas> <script type="text/javascript"> var canvas=document.getElementById('myCanvas'); var ctx=canvas.getContext('2d'); ctx.fillStyle='#FF0000'; ctx.fillRect(0,0,80,100); </script> </body> </html>
查看结果: