js 发送短信倒计时、秒杀倒计时实现代码

<!doctype html>

      <html>

        <head>

          <meta charset="utf-8">

          <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

          <title>发送短信倒计时DEMO</title>

          <script src="jquery.min.js"></script>

        </head>

        <body style="padding:20px;">

          <span class="djs">clike me </span>

        </body>

        <script>

            var status = 1

            var seconds = 10

            var timeInterval

            function timeover(){

                $(".djs").html(seconds + "秒")

                seconds--

                if (seconds < 0) {

                    status = 1

                    seconds = 10

                    clearInterval(timeInterval)

                    $(".djs").html("clike me")

                }

            }

            $(function(){

                $(".djs").click(function(){

                    if(status == 0){

                        // 正在处理 - 锁定阶段

                        return

                    }

                    status = 0

                    timeInterval = setInterval("timeover()", 1000)

                })

            })

        </script>

      </html>

<!doctype html>

      <html>

        <head>

          <meta charset="utf-8">

          <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

          <title>秒杀倒计时</title>

          <script src="jquery.min.js"></script>

        </head>

        <body style="padding:20px;">

          <span class="showtime"> </span>

        </body>

        <script>

             // 当天0点

            var zerotime = new Date(new Date().toLocaleDateString()).getTime()

            // 当天11点

            var time1 = zerotime + 11 * 60 * 60 * 1000 - 1;

            // 当天15点

            var time2 = zerotime + 15 * 60 * 60 * 1000 - 1;

            // 当天20点

            var time3 = zerotime + 20 * 60 * 60 * 1000 - 1;

            // 第二天11点

            var time4 = zerotime + 34 * 60 * 60 * 1000 - 1;

            var currenttime

            var lefttime = 0

            setInterval("timeover()", 1000)

            function timeover(){

                currenttime = new Date().getTime()

                if(currenttime < time1) {

                    lefttime = time1 - currenttime

                } else if(currenttime < time2) {

                    lefttime = time2 - currenttime

                } else if(currenttime < time3) {

                    lefttime = time3 - currenttime

                } else if(currenttime < time4) {

                    lefttime = time4 - currenttime

                }

                lefttime = lefttime/1000

                var result = formatSeconds(lefttime)

                $(".showtime").html(result[0] + ":" + result[1] + ":" + result[2])

            }

            function formatSeconds(value) {

                var secondTime = parseInt(value);// 秒

                var minuteTime = 0;// 分

                var hourTime = 0;// 小时

                if(secondTime > 60) {//如果秒数大于60，将秒数转换成整数

                    //获取分钟，除以60取整数，得到整数分钟

                    minuteTime = parseInt(secondTime / 60);

                    //获取秒数，秒数取佘，得到整数秒数

                    secondTime = parseInt(secondTime % 60);

                    //如果分钟大于60，将分钟转换成小时

                    if(minuteTime > 60) {

                        //获取小时，获取分钟除以60，得到整数小时

                        hourTime = parseInt(minuteTime / 60);

                        //获取小时后取佘的分，获取分钟除以60取佘的分

                        minuteTime = parseInt(minuteTime % 60);

                    }

                }

                var array = []

                var hour = parseInt(hourTime) > 9 ? parseInt(hourTime) : "0"+parseInt(hourTime)

                var minut = parseInt(minuteTime) > 9 ? parseInt(minuteTime) : "0"+parseInt(minuteTime)

                var second = parseInt(secondTime) > 9 ? parseInt(secondTime) : "0"+parseInt(secondTime)

                array.push(hour)

                array.push(minut)

                array.push(second)

                return array;

            }

        </script>

      </html>

注意：需要引入JQUERY

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js 发送短信倒计时、秒杀倒计时实现代码

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