<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>canvas实例--制作时钟</title>
</head>
<body>
<canvas id="canvas" width="500" height="500" >
您的浏览器版本太低啦！可以换了！
</canvas>
<script>
//获取canvas
var canvas = document.getElementById("canvas")
//设置环境
var cxt = canvas.getContext("2d")
//制作时钟的函数
function DrawClock() {
//清除画布
cxt.clearRect(0,0,500,500)
//获取当前时间的时，分，秒
var now = new Date()
var hour = now.getHours()
var min = now.getMinutes()
var sec = now.getSeconds()
//小时必须获取浮点型（小时+分数--->转化为的小时）
hour = hour + min / 60
//将24小时转换为12小时
hour = hour >12 ? hour - 12 : hour
//制作表盘
cxt.beginPath()
cxt.lineWidth = 10
cxt.strokeStyle = "#ABCDEF"
cxt.arc(250, 250, 200, 0, 360, false)
cxt.stroke()
cxt.closePath()
//刻度
//时针
for (var i = 0i <12i++) {
cxt.save()
cxt.lineWidth = 7
cxt.strokeStyle = "red"
//设置0,0点
cxt.translate(250, 250)
//再设置旋转角度
cxt.rotate(i * 30 * Math.PI / 180)
cxt.beginPath()
cxt.moveTo(0, -170)
cxt.lineTo(0, -190)
cxt.closePath()
cxt.stroke()
cxt.restore()
}
//分针
for (var i = 0i <60i++) {
//为避免不同颜色的重叠，
//在时针刻度与分针刻度重叠的位置，不画分针
if (i % 5 == 0) continue
cxt.save()
//设置刻度粗细
cxt.lineWidth = 5
cxt.strokeStyle = "purple"
//设置画布的0,0点
cxt.translate(250, 250)
//设置旋转角度
cxt.rotate(i * 6 * Math.PI / 180)
//画分针刻度
cxt.beginPath()
cxt.moveTo(0, -180)
cxt.lineTo(0, -190)
cxt.closePath()
cxt.stroke()
cxt.restore()
}
//时针
cxt.save()
//设置时针风格
cxt.lineWidth = 7
cxt.strokeStyle = "pink"
//设置异次元空间的0,0点
cxt.translate(250, 250)
//设置旋转角度
cxt.rotate(hour * 30 * Math.PI / 180)
cxt.beginPath()
cxt.moveTo(0, -140)
cxt.lineTo(0, 10)
cxt.closePath()
cxt.stroke()
cxt.restore()
//分针
cxt.save()
//设置分针风格
cxt.lineWidth = 5
cxt.strokeStyle = "orange"
//设置异次元空间的0,0点
cxt.translate(250, 250)
//设置旋转角度
cxt.rotate(min * 6 * Math.PI / 180)
cxt.beginPath()
cxt.moveTo(0, -160)
cxt.lineTo(0, 15)
cxt.closePath()
cxt.stroke()
cxt.restore()
//秒针
cxt.save()
//风格
cxt.strokeStyle = "yellow"
cxt.lineWidth = 3
//重置0，0点
cxt.translate(250, 250)
//设置旋转角度
cxt.rotate(sec*6*Math.PI/180)
//画图
cxt.beginPath()
cxt.moveTo(0, -170)
cxt.lineTo(0, 20)
cxt.stroke()
//画出时针，分针，秒针的交叉点
cxt.beginPath()
cxt.arc(0, 0, 5, 0, 360, false)
cxt.closePath()
//设置填充样式
cxt.fillStyle = "blue"
cxt.fill()
//设置笔触样式--->秒针已设置
cxt.stroke()
//设置秒针前端的小圆点
cxt.beginPath()
cxt.arc(0, -150, 5, 0, 360, false)
cxt.closePath()
//设置填充样式
cxt.fillStyle = "blue"
cxt.fill()
//设置笔触样式
cxt.stroke()
cxt.closePath()
cxt.restore()
}
//调用函数
DrawClock()
//设置时钟转动起来
setInterval(DrawClock, 1000)
</script>
</body>
</html>
以前做过一个 CSS 的钟表，你可以参考一下：<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" type="text/css" href=""/>
<script type="text/javascript" src=""></script>
<style type="text/css">
#outer{
/*background-color:#bfa*/
width:300px
height:300px
position:relative
margin-left:300px
margin-top:100px
}
ul{
margin-left:150px
padding:0
list-style:none
}
ul li{
width:4px
height:8px
background-color:#000
position:absolute
transform-origin:2px 150px
}
ul li:nth-child(5n+1){
height:14px
}
ul li:nth-child(15n+1){
background-color:#00FF01
}
#second{
width:2pxheight:120pxbackground:goldposition:absolutetop:30px
left:150px
transform-origin:1px 100%
}
#min{
width:2pxheight:100pxbackground:#000position:absolutetop:50px
left:150px
transform-origin:1px 100%
}
#hour{
width:4pxheight:70pxbackground:#000position:absolutetop:80px
left:150px
transform-origin:2px 100%
}
</style>
<script type="text/javascript">
window.onload = function(){
var dail = document.getElementById("dail")
for(var i=0 i<60 i++){
var scale = document.createElement("li")
scale.style.transform = "rotate("+i*6+"deg)"
dail.appendChild(scale)
}
setInterval(function(){
var sec = document.getElementById("second")
var min = document.getElementById("min")
var hour = document.getElementById("hour")
var date = new Date()
var second = date.getSeconds()
var minute = date.getMinutes()+second/60
var hou = date.getHours()+minute/60
sec.style.transform = "rotate(" + second*6 + "deg)"
min.style.transform = "rotate(" + minute*6 + "deg)"
hour.style.transform = "rotate("+hou*30+"deg)"
},1000)
}
</script>
</head>
<body>
<div id="outer">
<ul id="dail"></ul>
<div id="hour"></div>
<div id="min"></div>
<div id="second"></div>
</div>
</body>
</html>
