写了一个模拟中奖信息的代码。

一共有4个随机信息：

  1. 随机6-10位数的QQ号
  2. 随机每天的中奖人数
  3. 随机中奖的奖品
  4. 今天的随机中奖人数少于前几天的随机数

演示效果：
滚动随机中奖信息
代码如下：

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title></title>
        <link rel="stylesheet" href="./style.css">
        <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
    </head>
    <body>
        <div class="title">
            <span class="qq">领取QQ</span>
            <span class="time">完成时间</span>
            <span class="prizes">获得奖励</span>
        </div>
        <div id="review_box">
            <ul id="comment1"></ul>
            <ul id="comment2"></ul>
        </div>
    </body>
    <script src="./script.js"></script>
</html>
* {
    margin: 0;
    padding: 0;
}
#review_box {
    width: 600px;
    height: 400px;
    overflow: hidden;
    text-align: left;
    padding: 1rem;
    margin: 1rem;
}
ul {
    list-style: none;
}
.prize{
    color: #f00;
}
.title{
    width: 600px;
    padding: 1rem 1rem 0;
}
.qq{
    margin-left: 18px;
    font-weight: bolder;
    color: #dc00e0;
}
.time{
    margin-left: 120px;
    font-weight: bolder;
    color: #dc00e0;
}
.prizes{
    margin-left: 120px;
    font-weight: bolder;
    color: #dc00e0;
}
var dayTotal = 5; //最近几天的包含今天
var dayMin = 36; //每天最少多少条
var dayMax = 72; //每天最多多少条

$(function () {
    var dayArr = getDay(dayTotal);
    var html = [];
    for (var v = 0; v < dayArr.length; v++) {
        var dayNum = randomNum(dayMin - 7, dayMax - 14);
        if (v !== 0) {
            dayNum = randomNum(dayMin, dayMax);
        }
        for (var t = 0; t < dayNum; t++) {
            var vo = '<li>恭喜QQ：' + getQQ() + ' 于 ' + dayArr[v] + '日 推广成功！<span class="prize">奖励' + getPrize() + '</span></li>';
            html.push(vo);
        }
    }
    $("#comment1").html(html);
    
    window.onload = roll(15);
    
    function roll(t) {
        var ul1 = document.getElementById("comment1");
        var ul2 = document.getElementById("comment2");
        var ulbox = document.getElementById("review_box");
        ul2.innerHTML = ul1.innerHTML;
        ulbox.scrollTop = 0;
        var timer = setInterval(rollStart, t);
        ulbox.onmouseover = function () {
            clearInterval(timer);
        }
        ulbox.onmouseout = function () {
            timer = setInterval(rollStart, t);
        }
    }
    
    function rollStart() {
        var ul1 = document.getElementById("comment1");
        var ul2 = document.getElementById("comment2");
        var ulbox = document.getElementById("review_box");
        if (ulbox.scrollTop >= ul1.scrollHeight) {
            ulbox.scrollTop = 0;
        } else {
            ulbox.scrollTop++;
        }
    }
    
    function randomNum(minNum,maxNum){
        switch(arguments.length){
            case 1:
                return parseInt(Math.random()*minNum+1,10);
            break;
            case 2:
                return parseInt(Math.random()*(maxNum-minNum+1)+minNum,10);
            break;
                default:
                    return 0;
                break;
        }
    }
    
    function getDay(num){
        var dayArr = [];
        var day = new Date();
        for(var i = 0; i < num; i++){
            if(i == 0){
                day.setDate(day.getDate() - 0);
            }else{
                day.setDate(day.getDate() - 1);
            }
            dayArr.push(day.format("yyyy-MM-dd"));
        }
        return dayArr;
    }
    
    function getQQ(){
        var qqNum = 1000000;
        var num = Math.floor(Math.random() * 10000);
        if(num >= 1 && num <= 8) {
            qqNum = 1000;
        } else if (num > 8 && num <= 82) {
            qqNum = 10000;
        } else if (num > 82 && num <= 214) {
            qqNum = 100000;
        } else if (num > 214 && num <= 7397) {
            qqNum = 1000000;
        } else {
            qqNum = 10000000;
        }
        var qq = Math.floor(Math.random() * qqNum) + '***';
        return qq;
    }
    
    function getPrize(){
        var prizeArr = [1,2,3,4,5];
        var n = Math.floor(Math.random() * prizeArr.length + 1) - 1;
        var prize = '<img src="https://ae01.alicdn.com/kf/HTB10965akH0gK0jSZPi761vapXa7.png" width="15">永久豪华绿钻';
        if (prizeArr[n] === 1) {
            prize = '<img src="https://ae01.alicdn.com/kf/HTB10965akH0gK0jSZPi761vapXa7.png" width="15">永久豪华绿钻';
        } else if (prizeArr[n] === 2) {
            prize = '<img src="https://ae01.alicdn.com/kf/HTB1UsP5ahD1gK0jSZFs762ldVXaf.png" width="15">永久视频会员';
        } else if (prizeArr[n] === 3) {
            prize = '<img src="https://ae01.alicdn.com/kf/HTB1JJ24aeL2gK0jSZPh761hvXXae.png" width="15">永久豪华黄钻';
        } else if (prizeArr[n] === 4) {
            prize = '<img src="https://ae01.alicdn.com/kf/HTB1Cmv5abj1gK0jSZFu763rHpXaU.png" width="15">永久超级会员';
        } else {
            var zanNum = Math.floor(Math.random() * 100000);
            prize = '<img src="https://ae01.alicdn.com/kf/HTB12gj5akT2gK0jSZPc763KkpXa5.png" width="15">' + zanNum + '名片赞';
        }
        return prize;
    }
});

Date.prototype.format = function (fmt) {
    var o = {
        "M+": this.getMonth() + 1, //月份
        "d+": this.getDate(), //日
        "h+": this.getHours(), //小时
        "m+": this.getMinutes(), //分
        "s+": this.getSeconds(), //秒
        "q+": Math.floor((this.getMonth() + 3) / 3), //季度
        "S": this.getMilliseconds() //毫秒
    };
    if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
    for (var k in o)
        if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
    return fmt;
}