<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>canvas实例1-时钟</title>
</head>
<body>
<canvas id="clock" width="500" height="500">
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</canvas>
<script>
var clock = document.getElementById('clock');
var cxt = clock.getContext('2d');
// 表盘(蓝色)
cxt.beginPath();
cxt.lineWidth = 10;
cxt.strokeStyle= "blue";
cxt.arc(250,250,200,0,360,false);
cxt.stroke();
cxt.closePath();
// 刻度
// 时刻度开始
for(var i=0; i<12; i++) {
cxt.save();
cxt.lineWidth = 7;
cxt.strokeStyle = "#000";
cxt.translate(250,250);
cxt.rotate(i*30*Math.PI/180);
cxt.beginPath();
cxt.moveTo(0,-170);
cxt.lineTo(0,-190);
cxt.stroke();
cxt.closePath();
cxt.restore();
}
// 时刻度结束
// 分刻度开始
for(var i=0; i<60; i++) {
cxt.save();
cxt.lineWidth = 5;
cxt.strokeStyle = "#000";
cxt.translate(250,250);
cxt.rotate(i*6*Math.PI/180);
cxt.beginPath();
cxt.moveTo(0,-180);
cxt.lineTo(0,-190);
cxt.stroke();
cxt.closePath();
cxt.restore();
}
// 分刻度结束
// 时针开始
cxt.save();
cxt.beginPath();
cxt.lineWidth = 7;
cxt.strokeStyle = "#000";
cxt.translate(250,250);
cxt.rotate(90*Math.PI/180);
cxt.moveTo(0,-140);
cxt.lineTo(0,10);
cxt.stroke();
cxt.closePath();
cxt.restor();
// 时针结束
// 分针开始
cxt.save();
cxt.beginPath();
cxt.lineWidth = 5;
cxt.strokeStyle = "#000";
cxt.translate(250,250);
cxt.rotate(180*Math.PI/180);
cxt.moveTo(0,-160);
cxt.lineTo(0,15);
cxt.stroke();
cxt.closePath();
cxt.restor();
// 分针结束
</script>
</body>
</html>
请各位老师帮忙看看,分针是复制时针的代码后进行了修改,为什么分针做不出来,请老师指教!非常感谢!
谢谢老师的指点!非常感谢!
cxt.restor();
==》
cxt.restore();