当前时间（模拟电子时钟） 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>模拟电子时钟</title>
    <script src="https://cdn.bootcss.com/jquery/1.9.1/jquery.min.js"></script>
</head>
<body>
    <div>
        当前时间为： 
        <span class="current-time"></span>
    </div>

    <script>
        $(function () {
            // 获取时间
            function currentTime() {
                let time, y, m, d, h, mm, s;
                let date = new Date();
                y = date.getFullYear();
                m = date.getMonth() + 1;
                d = date.getDate();

                h = date.getHours();
                mm = date.getMinutes();
                s = date.getSeconds();

                $(".current-time").html(filterTime(y, m, d, h, mm, s));

                setInterval(function () {
                    let date2 = new Date();
                    h = date2.getHours();
                    mm = date2.getMinutes();
                    s = date2.getSeconds();

                    $(".current-time").html(filterTime(y, m, d, h, mm, s));
                }, 1000)
            }

            // 过滤时间
            function filterTime(y, m, d, h, mm, s) {
                time = y + "年";
                if (m < 10) {
                    time += "0";
                }
                time += m + "月";
                if (d < 10) {
                    time += "0";
                }
                time += d + "日";
                if (h < 10) {
                    time += "0";
                }
                time += h + "时";
                if (mm <10 ) {
                    time += "0";
                }
                time += mm + "分";
                if (s < 10) {
                    time += "0";
                }
                time += s + "秒";

                return time;
            }

            currentTime();
        })
    </script>
</body>
</html>

 注：在safari浏览器中，请将声明“let”  改为“var”，否则会报错。（据悉是因为safari和chrome 关于let的作用域不一样） 

posted @ 2018-11-08 14:41  新码将  阅读(668)  评论(0)  编辑  收藏  举报