4-10练习
来源：4-10 编程练习
夕落呀
2018-12-22 12:31:22
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>案例</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(300,300);
context.fillStyle="pink";
context.arc(0,0,100,0,2*Math.PI,true);
context.fill();
context.beginPath();
context.strokeStyle="#000";
for(var i=0; i<4; i++){
context.rotate(Math.PI / 2);
context.moveTo(85,0);
context.lineTo(100,0);
}
context.stroke();
context.beginPath();
context.strokeStyle="blue";
context.moveTo(0,0);
context.lineTo(0,-70);
context.stroke();
context.beginPath();
context.rotate(Math.PI / 2);
context.moveTo(0,0);
context.lineTo(0,-75);
context.stroke();
//在此处编写代码
</script>
</body>
</html>
1回答
-
好帮手慕星星
2018-12-23
经测试代码实现效果是不错的，可以将时针的长度再缩短一些：
祝学习愉快！
0
