复制代码直接运行
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>timer</title>
</head>
<body>
<div id="timer">
<div id="h"></div>
<div id="m"></div>
<div id="s"></div>
</div>
</body>
<style>
html,body{
width: 100%;
height: 100%;
margin: 0 auto;
}
#timer {
width: 600px;
height: 600px;
background-color: dimgray;
border-radius: 50%;
position: absolute;
z-index: 1;
}
#h,#m,#s{
width: 600px;
height: 600px;
}
#h {
background: url(./img/h.png) no-repeat center center;
position: absolute;
z-index: 2
}
#m {
background: url(./img/m.png) no-repeat center center;
position: absolute;
z-index: 3;
}
#s {
background: url(./img/s.png) no-repeat center center;
position: absolute;
z-index: 4;
}
</style>
<script>
window.onload = function () {
// 获取 DOM 元素
var oh = document.getElementById("h");
var om = document.getElementById("m");
var os = document.getElementById("s");
// 更新时间并渲染
function go() {
var time = new Date();
console.log(time)
var H = time.getHours() + time.getMinutes() / 60;
console.log(H)
var M = time.getMinutes();
console.log(M)
var S = time.getSeconds() + time.getMilliseconds() / 1000;
console.log(S)
os.style.transform = 'rotate(' + S * 6 + 'deg)';
om.style.transform = 'rotate(' + M * 6 + 'deg)';
oh.style.transform = 'rotate(' + H * 30 + 'deg)';
//document.write("当前时间:"+H+":"+Mi+":"+S);
}
// 每隔 1s 更新并渲染
go();
setInterval(go, 1000);
}
</script>
</html>
