68、综合案例

2024-10-04 / 0 评论 / 5 阅读 / 正在检测是否收录...

10/04

<!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>Document</title>
</head>
<body>
    <script>
        // 1、用户输入
        let second = +prompt('请输入秒数:')
        // 2、封装函数
        function getTime(t){
            // console.log(t) //总秒数
            // 3、转换
            let h = parseInt(t/ 60 / 60 % 24) //小时
            let m = parseInt(t/ 60 % 60) //分钟
            let s = parseInt(t % 60) //秒数
          h = h < 10 ? '0' + h : h
          m = m < 10 ? '0' + m : m
          s = s < 10 ? '0' + s : s
        //   console.log(h,m,s)
        return `转换完毕之后是${h}:${m}；${s}`
        }
        let str = getTime(second)
        document.write(str)
    </script>
</body>
</html>

JavaScript