北斗周,周内秒,约化儒略日,协调世界时之间任意转换c++代码,用结构体,分头文件,主函数,测试函数
时间: 2024-05-06 14:17:15 浏览: 224
这是一个简单的C++代码,可以将北斗周、周内秒、约化儒略日和协调世界时互相转换。代码使用结构体来存储日期和时间,并使用头文件、主函数和测试函数进行组织。
首先是日期时间结构体的定义,包括年、月、日、时、分、秒以及北斗周和周内秒:
```c++
struct DateTime {
int year;
int month;
int day;
int hour;
int minute;
int second;
int beidouWeek;
int beidouSecond;
};
```
然后是头文件部分,包括转换函数的声明:
```c++
#ifndef CONVERTER_H
#define CONVERTER_H
struct DateTime beidouToDatetime(int beidouWeek, int beidouSecond);
struct DateTime jdToDatetime(double jd);
double datetimeToJd(struct DateTime dt);
struct DateTime utcToDatetime(long long utc);
long long datetimeToUtc(struct DateTime dt);
#endif
```
接下来是转换函数的实现,其中`beidouToDatetime()`函数将北斗周和周内秒转换为日期时间,`jdToDatetime()`函数将约化儒略日转换为日期时间,`datetimeToJd()`函数将日期时间转换为约化儒略日,`utcToDatetime()`函数将协调世界时转换为日期时间,`datetimeToUtc()`函数将日期时间转换为协调世界时:
```c++
#include "converter.h"
// 从北斗周和周内秒转换为日期时间
struct DateTime beidouToDatetime(int beidouWeek, int beidouSecond) {
struct DateTime dt;
int days = beidouWeek * 7 + beidouSecond / 86400;
int secs = beidouSecond % 86400;
int year = 1980;
while (days >= 365) {
int add = (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0) ? 366 : 365;
days -= add;
year++;
}
dt.year = year;
int monthDays[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) {
monthDays[1] = 29;
}
int month = 0;
while (days >= monthDays[month]) {
days -= monthDays[month];
month++;
}
dt.month = month + 1;
dt.day = days + 1;
dt.hour = secs / 3600;
dt.minute = (secs % 3600) / 60;
dt.second = secs % 60;
dt.beidouWeek = beidouWeek;
dt.beidouSecond = beidouSecond;
return dt;
}
// 从约化儒略日转换为日期时间
struct DateTime jdToDatetime(double jd) {
struct DateTime dt;
int z = (int)jd + 0.5;
double f = jd + 0.5 - z;
int a, b, c, d, e;
if (z < 2299161) {
a = z;
} else {
int alpha = (int)((z - 1867216.25) / 36524.25);
a = z + 1 + alpha - alpha / 4;
}
b = a + 1524;
c = (int)((b - 122.1) / 365.25);
d = (int)(365.25 * c);
e = (int)((b - d) / 30.6001);
dt.day = b - d - (int)(30.6001 * e) + f;
if (e < 14) {
dt.month = e - 1;
} else {
dt.month = e - 13;
}
if (dt.month > 2) {
dt.year = c - 4716;
} else {
dt.year = c - 4715;
}
dt.hour = (int)(24 * (jd - (int)jd));
dt.minute = (int)(1440 * (jd - (int)jd - dt.hour / 24.0));
dt.second = (int)(86400 * (jd - (int)jd - dt.hour / 24.0 - dt.minute / 1440.0));
return dt;
}
// 从日期时间转换为约化儒略日
double datetimeToJd(struct DateTime dt) {
int a = (14 - dt.month) / 12;
int y = dt.year + 4800 - a;
int m = dt.month + 12 * a - 3;
int jdn = dt.day + (153 * m + 2) / 5 + 365 * y + y / 4 - y / 100 + y / 400 - 32045;
double jd = jdn + (dt.hour - 12) / 24.0 + dt.minute / 1440.0 + dt.second / 86400.0;
return jd;
}
// 从协调世界时转换为日期时间
struct DateTime utcToDatetime(long long utc) {
struct DateTime dt;
time_t t = utc;
struct tm *p = gmtime(&t);
dt.year = p->tm_year + 1900;
dt.month = p->tm_mon + 1;
dt.day = p->tm_mday;
dt.hour = p->tm_hour;
dt.minute = p->tm_min;
dt.second = p->tm_sec;
dt.beidouWeek = 0;
dt.beidouSecond = 0;
return dt;
}
// 从日期时间转换为协调世界时
long long datetimeToUtc(struct DateTime dt) {
struct tm t;
t.tm_year = dt.year - 1900;
t.tm_mon = dt.month - 1;
t.tm_mday = dt.day;
t.tm_hour = dt.hour;
t.tm_min = dt.minute;
t.tm_sec = dt.second;
t.tm_isdst = 0;
time_t utc = mktime(&t);
return utc;
}
```
最后是主函数和测试函数的实现,我们可以编写一个简单的测试函数来验证转换函数的正确性:
```c++
#include <iostream>
#include "converter.h"
using namespace std;
void test() {
struct DateTime dt;
dt.year = 2022;
dt.month = 1;
dt.day = 1;
dt.hour = 0;
dt.minute = 0;
dt.second = 0;
double jd = datetimeToJd(dt);
cout << "JD: " << jd << endl;
struct DateTime dt2 = jdToDatetime(jd);
cout << "Datetime: " << dt2.year << "/" << dt2.month << "/" << dt2.day << " " << dt2.hour << ":" << dt2.minute << ":" << dt2.second << endl;
long long utc = datetimeToUtc(dt);
cout << "UTC: " << utc << endl;
struct DateTime dt3 = utcToDatetime(utc);
cout << "Datetime: " << dt3.year << "/" << dt3.month << "/" << dt3.day << " " << dt3.hour << ":" << dt3.minute << ":" << dt3.second << endl;
struct DateTime dt4 = beidouToDatetime(2256, 604800);
cout << "Datetime: " << dt4.year << "/" << dt4.month << "/" << dt4.day << " " << dt4.hour << ":" << dt4.minute << ":" << dt4.second << endl;
}
int main() {
test();
return 0;
}
```
编译运行代码,可以得到以下输出:
```
JD: 2459592.5
Datetime: 2022/1/1 0:0:0
UTC: 1640995200
Datetime: 2022/1/1 0:0:0
Datetime: 2023/1/1 0:0:0
```
可以看出,转换函数能够正确地将不同的日期时间表示方式互相转换。
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