老师,请检查
来源:4-5 编程练习
phantom0308
2020-08-30 21:28:30
<!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");
// console.log(ctx);
ctx.translate(200,300);
ctx.rotate(Math.PI / 3);
ctx.scale(0.5,0.5);
ctx.fillStyle = "#ff0";
ctx.fillRect(100,100,200,300);
</script>
</body>
</html>1回答
你可以看看这个
<!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>
var canvas=document.getElementById("canvas");
var context=canvas.getContext("2d");
context.translate(100,200);
context.rotate(Math.PI/3);
context.scale(0.5,0.5)
context.fillStyle="yellow";
context.fillRect(100,100,200,300);
</script>
</body>
</html>