简单双色球、大乐透随机数实现

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    <title>Page Title</title>
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    <script>
        console.log('双色球!红色球:' + radom(33, 6) + '蓝色球是:' + Math.ceil(Math.random() * 16));
        console.log('大乐透!红色球:' + radom(35, 5) + '蓝色球是:' + radom(12, 2));


        /*
         * @method 生成随机的几个数
         * @param {num, num} 数值的最大数,共几位数
         * @return {array} 返回随机生成的从小到大排列的数组
        */
        function radom(max, len) {
            var redNum = [],
                radomNum;

            while (redNum.length < len) {
                radomNum = Math.ceil(Math.random() * max);
                if (redNum.indexOf(radomNum) < 0) {
                    redNum.push(radomNum);
                }
            }
            // 生成的数据以从小到大的顺序排列
            redNum.sort(function compare(a, b) {
                return a - b;
            })
            return redNum;
        }
    </script>
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转载自www.cnblogs.com/duanfuying/p/10509836.html