4-5练习对吗

来源：4-5 编程练习

qq_紾悕_1

2019-05-30 16:30:32

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>canvasL</title>
    <style>
        canvas{background-color:lightblue;}
    </style>
</head>
<body>
    <canvas id="canvas" width="600px" height="600px">您的浏览器不支持</canvas>
    <script>
      // 在此处写出代码
      var canvas = document.getElementById('canvas');
      var ctx = canvas.getContext('2d');

      ctx.translate(200,300);
      ctx.rotate(Math.PI/3);
      ctx.scale(0.5,0.5);
      ctx.fillStyle="yellow";
      ctx.fillRect(100,100,200,300);
    </script>
</body>
</html>