本文實例為大家分享了JS+CSS實現動態時鐘的具體代碼，供大家參考，具體內容如下
知識點總結：
document.querySelector（）方法返回文檔中匹配指定 CSS 選擇器的一個元素。
setInterval() 方法可按照指定的周期（以毫秒計）來調用函數或計算表達式。
setInterval() 方法會不停地調用函數，直到 clearInterval() 被調用或窗口被關閉。由 setInterval() 返回的 ID 值可用作 clearInterval() 方法的參數。
HTML+js部分
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<!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"> <link rel="stylesheet" href="shiying.css" > <title>Document</title></head><body> <div class="clock"> <div class="hour"> <div class="hr" id="hr"></div> </div> <div class="min"> <div class="mn" id="mn"></div> </div> <div class="sec"> <div class="sc" id="sc"></div> </div> </div> <script type="text/javascript"> const deg = 6; const hr = document.querySelector('#hr'); const mn = document.querySelector('#mn'); const sc = document.querySelector('#sc'); setInterval(() => { let day = new Date(); let hh = day.getHours() * 30; let mm = day.getMinutes() * deg; let ss = day.getSeconds() * deg; hr.style.transform = `rotateZ(${(hh) + (mm / 12)}deg)`; mn.style.transform = `rotateZ(${mm}deg)`; sc.style.transform = `rotateZ(${ss}deg)`; }) </script></body></html> |
CSS部分
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*{ margin:0; padding:0; box-sizing: border-box;}body{ display: flex; justify-content: center; align-items: center; min-height: 100vh; background: #091921;}.clock{ width: 350px; height: 350px; display:flex; justify-content: center; align-items: center; background: url(1613462007944.png); background-size: cover; border:4px solid #091921; border-radius: 50%; box-shadow: 0 -15px 15px rgba(255,255,255,0.05), inset 0 -15px 15px rgba(255,255,255, 0.05), 0 -15px 15px rgba(0,0,0,0.05), inset 0 -15px 15px rgba(0,0,0, 0.05);}.clock:before{ content:""; position: absolute; width: 15px; height: 15px; background: #fff; border-radius: 50%; z-index:10000;}.clock .hour,.clock .min,.clock .sec{ position: absolute;}.clock .hour, .hr{ width: 160px; height: 160px;}.clock .min, .mn{ width: 190px; height: 190px;}.clock .sec, .sc{ width: 230px; height: 230px;}.hr, .mn, .sc{ display: flex; justify-content: center; position: absolute; border-radius: 50%;}.hr:before{ content:""; position: absolute; width: 8px; height: 80px; background: #ff105e; z-index: 10; border-radius: 6px 6px 0 0;}.mn:before{ content:""; position: absolute; width: 4px; height: 90px; background: #fff; z-index: 11; border-radius: 6px 6px 0 0;}.sc:before{ content:""; position: absolute; width: 4px; height: 150px; background: #fff; z-index:12; border-radius: 6px 6px 0 0;} |
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
原文鏈接：https://blog.csdn.net/weixin_44717486/article/details/113826046
