Watch timer

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This link: https://blog.csdn.net/weixin_45747700/article/details/102681355

1. watch timer
is first prepared image
points second needle
Here Insert Picture Description
inserted here described image

codes

<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title>计时器</title>
    <style type="text/css">
        * {
            margin: 0;
            padding: 0;
        }
        div {
            width: 300px;
            height: 300px;
        }
        #clock {
            background: url(1.jpg) no-repeat center center;
            position: absolute;
            z-index: 1;
        }
        #hour {
            background: url(hour.png) no-repeat center center;
            position: absolute;
            z-index: 2
        }
        #minute {
            background: url(minute.png) no-repeat center center;
            position: absolute;
            z-index: 3;
        }
        #second {
            background: url(second.png) no-repeat center center;
            position: absolute;
            z-index: 4;
        }
    </style>
</head>

<body>
<div id="clock">
    <div id="hour"></div>
    <div id="minute"></div>
    <div id="second"></div>
</div>
<script type="text/javascript">
    window.onload = function () {
        var oh = document.getElementById("hour");
        var om = document.getElementById("minute");
        var os = document.getElementById("second");
        function go() {
            var time = new Date();
            var H = time.getHours() + time.getMinutes()
            var M = time.getMinutes();
            var S = time.getSeconds() + time.getMilliseconds()
            os.style.transform = 'rotate(' + S * 6 + 'deg)';
            om.style.transform = 'rotate(' + M * 6 + 'deg)';
            oh.style.transform = 'rotate(' + H * 30 + 'deg)';
        }
        go();
        setInterval(go, 1000);
    }
</script>
</body>
</html>

```java

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