SOURCE

const obj = {
    arr0: ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10'],
    arr1: ['11', '12', '13', '14', '15', '16', '17', '18', '19', '20'],
    arr2: ['21', '22', '23', '24', '25', '26', '27', '28', '29', '30'],
    arr3: ['31', '32', '33', '34', '35', '36', '37', '38', '39', '40'],
    arr4: ['41', '42', '43', '44', '45', '46', '47', '48', '49', '50'],
    arr5: ['51', '52', '53', '54', '55', '56', '57', '58', '59', '60'],
    arr6: ['61', '62', '63', '64', '65', '66', '67', '68', '69', '70'],
    arr7: ['71', '72', '73', '74', '75', '76', '77', '78', '79', '80'],
}
// 洗牌算法，打散数组元素

class Solution {
    constructor(nums) {
        this.nums = nums;
        this.original = this.nums.slice();
    }
    // 重置
    reset() {
        this.nums = this.original.slice();
        return this.nums;
    }
    // 清洗
    shuffle() {
        for (let i = 0; i < this.nums.length; ++i) {
            const j = Math.floor(Math.random() * (this.nums.length - i)) + i;
            const temp = this.nums[i];
            this.nums[i] = this.nums[j];
            this.nums[j] = temp;
        }
        return this.nums;
    }
}

// 数组总和
function baseSum(array) {
    var result,
        index = -1,
        length = array.length;

    while (++index < length) {
        var current = parseInt(array[index]);
        if (current !== undefined) {
            result = result === undefined ? current : (result + current);
        }
    }
    return result;
}
// 获取当天的21:30:00时间戳
function getNowFormatDate() {
    var date = new Date();
    var year = date.getFullYear();
    var month = date.getMonth() + 1;
    var strDate = date.getDate();
    if (month >= 1 && month <= 9) {
        month = '0' + month;
    }
    if (strDate >= 0 && strDate <= 9) {
        strDate = '0' + strDate;
    }
    const time = year + '-' + month + '-' + strDate + '  21:30:00'
    return new Date(time).getTime();
}
// 获取随机下标 时间戳除以数组的和，直到位于0-9之间
function getIndex(time, total) {
    let index = Math.round(time / total)
    if (index >= 0 && index <= 9) {
        return index
    } else {
        return getIndex(index, total)
    }
}

// 获取基础的8个数据
function getBase8Arr() {
    let newArr = []
    let time = getNowFormatDate()
    for (let i = 0; i <= 7; i++) {
        let arr = obj[`arr${i}`]
        let solution = new Solution(arr)
        let sortArr = solution.shuffle()
        const index = getIndex(getNowFormatDate(), baseSum(arr))
        newArr.push(sortArr[index])
    }
    return newArr
}

// 获取剩余2个的唯一摇号
function getItem(baseArr = []) {
    let num = Math.floor(Math.random() * 80 + 1)
    if (num >= 1 && num <= 9) {
        num = '0' + num;
    }
    num = String(num)
    if (baseArr.includes(num)) {
        return getItem(baseArr)
    } else {
        return num
    }
}
// 最终得到的结果
function getLastArr() {
    const baseArr = getBase8Arr()
    for (let i = 0; i < 2; i++) {
        let item = getItem(baseArr)
        baseArr.push(item)
    }
    return baseArr.sort()
}

const totalArr = getLastArr()
console.log(totalArr)