输入一个现在时间，转化为北斗周，周内秒，约化儒略日，协调时C++代码，用结构体，.h.cpp

以下是使用结构体实现的C++代码，包括时间转换函数和主函数：

// time.h

#pragma once

struct Time {
    int year;       // 年份
    int month;      // 月份
    int day;        // 日
    int hour;       // 小时
    int minute;     // 分钟
    int second;     // 秒
    int millisecond;// 毫秒
};

// time.cpp

#include "time.h"
#include <cmath>

// 判断是否为闰年
bool isLeapYear(int year) {
    if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) {
        return true;
    }
    return false;
}

// 计算一年中的天数
int daysOfYear(int year) {
    if (isLeapYear(year)) {
        return 366;
    }
    return 365;
}

// 计算一月中的天数
int daysOfMonth(int year, int month) {
    switch (month) {
    case 1:
    case 3:
    case 5:
    case 7:
    case 8:
    case 10:
    case 12:
        return 31;
    case 4:
    case 6:
    case 9:
    case 11:
        return 30;
    case 2:
        if (isLeapYear(year)) {
            return 29;
        }
        return 28;
    default:
        return 0;
    }
}

// 计算儒略日
double julianDay(int year, int month, int day, int hour, int minute, int second, int millisecond) {
    double a = (14 - month) / 12;
    double y = year + 4800 - a;
    double m = month + 12 * a - 3;
    double JDN = day + (153 * m + 2) / 5 + 365 * y + y / 4 - y / 100 + y / 400 - 32045;
    double JD = JDN + (hour - 12) / 24.0 + minute / 1440.0 + second / 86400.0 + millisecond / 86400000.0;
    return JD;
}

// 计算北斗周和周内秒
void weekSecond(double julianDay, int& week, double& second) {
    double JD0 = 2444244.5;
    double week0 = 1356;
    double weekSeconds = 604800;
    double deltaJD = julianDay - JD0;
    week = (int)floor(deltaJD / 7.0) - (int)floor((week0 - deltaJD / 7.0) / 1024.0);
    second = fmod(deltaJD, 7.0) * 86400.0;
}

// 计算协调世界时
double utc2tai(int year, int month, int day, int hour, int minute, int second, int millisecond) {
    double JD = julianDay(year, month, day, hour, minute, second, millisecond);
    double TT = (JD - 2451545.0) / 36525.0;
    double TAI = JD + 32.184 + (0.001657 * pow(TT, 2)) + (0.000024 * pow(TT, 3));
    return TAI;
}

int main() {
    Time t;
    t.year = 2022;
    t.month = 1;
    t.day = 1;
    t.hour = 12;
    t.minute = 30;
    t.second = 0;
    t.millisecond = 0;

    double JD = julianDay(t.year, t.month, t.day, t.hour, t.minute, t.second, t.millisecond);
    int week;
    double second;
    weekSecond(JD, week, second);
    double TAI = utc2tai(t.year, t.month, t.day, t.hour, t.minute, t.second, t.millisecond);

    printf("JD: %.5f\n", JD);
    printf("Week: %d\n", week);
    printf("Second: %.5f\n", second);
    printf("TAI: %.5f\n", TAI);

    return 0;
}