JS相关

作者: 李奕锦liyijin | 来源:发表于2022-02-06 21:43 被阅读0次

    1.倒计时效果
    代码

    <!DOCTYPE html>
    <html lang="zh-CN">
    
    <head>
        <meta charset="utf-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no,viewport-fit=cover">
        <title>Page Title</title>
    </head>
    
    <body>
        <div class="wrap">
            <div class="over">本场距离结束还剩</div>
            <div class="time">
                <span class="hour"></span>:
                <span class="minute"></span>:
                <span class="second"></span>
            </div>
        </div>
        <script>
            let hour = document.querySelector('.hour');
            let minute = document.querySelector('.minute');
            let second = document.querySelector('.second');
            let inputTime = +new Date('2022-5-1 24:00:00');
    
            function countDown() {
                let nowTime = +new Date();
                let times = (inputTime - nowTime) / 1000;
                let h = parseInt(times / 60 / 60 % 24);
                h = h < 10 ? '0' + h : h;
                hour.innerHTML = h;
                let m = parseInt(times / 60 % 60);
                m = m < 10 ? '0' + m : m;
                minute.innerHTML = m;
                let s = parseInt(times % 60);
                s = s < 10 ? '0' + s : s;
                second.innerHTML = s;
            }
    
            setInterval(countDown, 1000);
        </script>
    </body>
    
    </html>
    

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