为什么出不来

来源：5-2 编程练习

qq_七杀武曲_0

2018-03-30 18:03:03

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>canvas渐变</title>
</head>
<body>
    <canvas id="canvas" width="600px" height="600px">您的浏览器不支持</canvas>
    <script>
        var canvas=document.getElementById("canvas");
        var context=canvas.getContext("2d");
        var a=context.creatLinearGradient(50,50,150,150);
        a.addColorStop(0,'yellow');
        a.addColorStop(1,'red');
        a.addColorStop(2,'blue');
        context.fillStyle=a;
        context.fillRect(0,0,200,200);
    </script>
</body>
</html>