Edit in JSFiddle JavaScript HTML CSS Result h1 {

            font-family: "微软雅黑";

            font-size: 40px;

            margin: 20px 0;

            border-bottom: solid 1px #ccc;

            padding-bottom: 20px;

            letter-spacing: 2px;

        }

        .time-item strong {

            background: #C71C60;

            color: #fff;

            line-height: 49px;

            font-size: 36px;

            font-family: Arial;

            padding: 0 10px;

            margin-right: 10px;

            border-radius: 5px;

            box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);

        }

        #day_show {

            float: left;

            line-height: 49px;

            color: #c71c60;

            font-size: 32px;

            margin: 0 10px;

            font-family: Arial, Helvetica, sans-serif;

        }

        .item-title .unit {

            background: none;

            line-height: 49px;

            font-size: 24px;

            padding: 0 10px;

            float: left;

        }

        var intDiff = parseInt(86400); //倒计时总秒数量

        function timer(intDiff) {

            window.setInterval(function () {

                var day = 0,

                    hour = 0,

                    minute = 0,

                    second = 0; //时间默认值

                if (intDiff > 0) {

                    day = Math.floor(intDiff / (60 * 60 * 24));

                    hour = Math.floor(intDiff / (60 * 60)) - (day * 24);

                    minute = Math.floor(intDiff / 60) - (day * 24 * 60) - (hour * 60);

                    second = Math.floor(intDiff) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60);

                }

                if (minute <= 9) minute = '0' + minute;

                if (second <= 9) second = '0' + second;

                $('#day_show').html(day + "天");

                $('#hour_show').html('<s id="h"></s>' + hour + '时');

                $('#minute_show').html('<s></s>' + minute + '分');

                $('#second_show').html('<s></s>' + second + '秒');

                intDiff--;

            }, 1000);

        }

        $(function () {

            timer(intDiff);

        });

    <h1>网页上的倒计时</h1>

    <div class="time-item">

        <span id="day_show">0天</span>

        <strong id="hour_show">0时</strong>

        <strong id="minute_show">0分</strong>

        <strong id="second_show">0秒</strong>

    </div>

---------------------------------------排序

        function test() {

            var numbers = [12, 23, 10, 56, 7, 88, 92, 49];

            numbers = numbers.sort(function (a, b) {

                return a - b;

            })

            var val;

            for (var i = 0; i < numbers.length; i++) {

                val += numbers[i] + '<br/>';

            }

            $('#show8').html(val);

        }

        <div>

            <input type="button" value="提交" onclick="test()" />

            <h3>数值数组排序前</h3>

            <div id="show7"></div>

            <h3>排序后</h3>

            <div id="show8"></div>

        </div>