一个随机摇号的js脚本

默认是随机生成1~10内的十个数

<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title>Insert title here</title>
</head>

<body>
    <input type="text" id="have" placeholder="例外，以逗号分隔">
    <br>
    <input type="text" id="beg" placeholder="生成范围开始0-100">
    <input type="text" id="end" placeholder="生成范围结束0-100">
    <button onclick="start();">开始</button>
    <div id="content"></div>

    <script type="text/javascript">

        Date.prototype.Format = function (fmt) { // author: meizz
            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;
        }


        var count = 0;
        var arr = new Array();
        function generateR() {
            var r = parseInt(Math.random() * 100);
            if (!isNaN(r) && r >= beg && r <= end) {
                var hasR = false;
                for(var index in arr){
                    if(arr[index] == r){
                        return generateR();
                    }
                }
                return r;
            } else {
                return generateR();
            }
        }

        var beg, end, have, timmer;
        function start() {
            have = document.getElementById('have').value;
            if(have){
                var tmp = have.split(",");
                for(var index in tmp){
                    arr.push(tmp[index]);
                }
            }
            beg = document.getElementById('beg').value;
            if (!beg) {
                beg = 0;
            }
            end = document.getElementById('end').value;
            if (!end) {
                end = 10;
            }
            console.log('begin' + document.getElementById('beg').value);

           timmer = setInterval(function () {
                count++;
                if (count > 20) {
                    return;
                }
                var d = new Date().Format("yyyy-MM-dd hh:mm:ss");
                var r;
                try {
                    r = generateR();
                } catch (error) {
                    clearInterval(timmer);
                    console.log(error);
                    return;
                }
                arr.push(r);
                console.log(parseInt(r) + " -- " + d);
                writeTo('content', r + " -- " + d);
            }, 1000);
        }

        function writeTo(e, v) {
            document.getElementById(e).innerHTML += v + '<br>';
        }

    </script>
</body>

</html>
来源：CSDN
作者：赫双炏
链接：https://blog.csdn.net/heliangb46/article/details/103462059
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return
var
beg