麻烦老师检查一下！
来源：5-7 编程练习
前端菜鸟HH
2020-09-25 15:57:47
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>canvas渐变</title>
<style>
canvas{background-color:black;}
</style>
</head>
<body>
<canvas id="canvas" width="800px" height="800px">您的浏览器不支持</canvas>
<script>
var canvas = document.getElementById("canvas");
var context = canvas.getContext("2d");
//在此处补充代码
context.translate(400, 400);
var radialGradient = context.createRadialGradient(100, 0, 0, 0, 0, 100);
radialGradient.addColorStop(0, 'rgba(255, 255, 255, 0.7)');
radialGradient.addColorStop(0.3, 'rgba(255, 0, 0, 0.7)');
radialGradient.addColorStop(0.75, 'rgba(255, 255, 255, 0.5)');
radialGradient.addColorStop(1, 'rgba(255, 255, 255, 0.1)');
context.fillStyle = radialGradient;
context.arc(0, 0, 100, 0, Math.PI * 2, true);
context.fill();
</script>
</body>
</html>
1回答
-
好帮手慕星星
2020-09-25
同学你好，代码绘制效果很棒。继续加油，祝学习愉快！
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