canvas---learning
/
画圆形.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        const canvas = document.createElement("canvas");
        canvas.width = 500;
        canvas.height = 500;
        document.body.append(canvas);
        const context = canvas.getContext("2d");
        context.arc(250, 250, 100, 0, 2 * Math.PI);
        context.stroke();
    </script>
</body>

</html>