浏览网页后，我找不到任何功能来执行此操作， 我有个人的解决方案，那就是工作。 也许这对某人有用。
**使用 Moment 插件来转换日期。 ***moment(currentPersianDate).clone().endof('month').format('YYYY/MM/DD') => 不适用于波斯日期
function GetLastDayOfPersianMonth(calendar) {
const currentDate = new Date();
const currentPersianDate = moment(currentDate).locale('fa').format('YYYY/M/D');
const splitDate = currentPersianDate.split("/");
const year = splitDate[0];
const month = splitDate[1];
const lastDayOfPersianMonth = CalculateLeapYear(month, year);
const endPersianMonth = year + "/" + month + "/" + lastDayOfPersianMonth;
};
function CalculateLeapYear(month, year) {
if (month <= 6) {
return 31;
}
if (month > 6 && month < 12) {
return 30;
}
const leapMatch = [1, 5, 9, 13, 17, 22, 26, 30];
const number = year % 33;
const isLeap = leapMatch.includes(number);
if (month == 12 && !isLeap) {
return 29;
}
if (month == 12 && isLeap) {
return 30;
}
}
您可以在 C# 中使用此代码 我的网站 https://mohammadhosseinaref.ir
public static string PersianDayOfWeek(DayOfWeek dayOfWeek)
{
switch (dayOfWeek)
{
case DayOfWeek.Sunday:
return "یکشنبه";
case DayOfWeek.Monday:
return "دوشنبه";
case DayOfWeek.Tuesday:
return "سه شنبه";
case DayOfWeek.Wednesday:
return "چهار شنبه";
case DayOfWeek.Thursday:
return "پنج شنبه";
case DayOfWeek.Friday:
return "جمعه";
case DayOfWeek.Saturday:
return "شنبه";
default:
return null;
}
}
public static Dictionary<int, string> ListOfPersianDayOfMonth(int month, int years)
{
Dictionary<int, string> dicDays = new Dictionary<int, string>();
PersianCalendar p = new PersianCalendar();
var dates = Enumerable.Range(1, p.GetDaysInMonth(years, month))
.Select(day => ParsePersianToGorgian(years + "/" + month + "/" + day))
.ToList();
foreach (var item in dates)
{
var day = GeorgianToPersian(item.Value, ShowMode.OnlyDate);
dicDays.Add(int.Parse(day.Split('/')[2]), DayPersian(item.Value.DayOfWeek) + " " + day);
}
return dicDays;
}
您可以找到下个月第一天之前的一天。 例如，如果您想查找第 6 个月的最后一天：
const firstDayOfNextMonth = moment.from('1400/07/01', 'fa', 'YYYY/MM/DD');
const lastDayOfMonth = firstDayOfNextMonth.add(-1,'d');
const lastDayOfMonthPersianDate = lastDayOfMonth.locale('fa').format('YYYY/M/D');
因此本月最后一天：
const currentDate = new Date();
const currentPersianDate = moment(currentDate).locale('fa').add(1,'month');
const firstDayOfNextMonthSt = currentPersianDate.format('jYYYY') + '/' + currentPersianDate.format('jM') + '/01';
//and then
const firstDayOfNextMonth = moment.from(firstDayOfNextMonthSt, 'fa', 'YYYY/MM/DD');
const lastDayOfMonth = firstDayOfNextMonth.add(-1,'d');
const lastDayOfMonthPersianDate = lastDayOfMonth.locale('fa').format('YYYY/M/D');
你可以编写一个这样的函数并使用它：
function getLastDayOfMonthPersianDate(firstDayOfNextMonthSt){
const firstDayOfNextMonth = moment.from(firstDayOfNextMonthSt, 'fa', 'YYYY/MM/DD');
const lastDayOfMonth = firstDayOfNextMonth.add(-1,'d');
const lastDayOfMonthPersianDate = lastDayOfMonth.locale('fa').format('YYYY/M/D');
return lastDayOfMonthPersianDate;
}
请参阅函数使用代码片段：
function getLastDayOfMonthPersianDate(firstDayOfNextMonthSt){
const firstDayOfNextMonth = moment.from(firstDayOfNextMonthSt, 'fa', 'YYYY/MM/DD');
const lastDayOfMonth = firstDayOfNextMonth.add(-1,'d');
const lastDayOfMonthPersianDate = lastDayOfMonth.locale('fa').format('YYYY/M/D');
return lastDayOfMonthPersianDate;
}
const lastDayOfMonthPersianDate = getLastDayOfMonthPersianDate('1400/07/01');
console.log('last day of the 6th month');
console.log(lastDayOfMonthPersianDate);
console.log('-------');
const currentDate = new Date();
const currentPersianDate = moment(currentDate).locale('fa').add(1,'month');
const firstDayOfNextMonthSt = currentPersianDate.format('jYYYY') + '/' + currentPersianDate.format('jM') + '/01';
const lastDayOfCurrentMonthPersianDate = getLastDayOfMonthPersianDate(firstDayOfNextMonthSt);
console.log('last day of the current month');
console.log(lastDayOfCurrentMonthPersianDate);<script src="https://unpkg.com/jalali-moment/dist/jalali-moment.browser.js"></script>这是不使用库的替代解决方案。
给定一个公历日期，该函数将返回有关该公历日期中的波斯月份的信息。
/*********************************************************************
* @function : getPersianMonthInfo(date)
* @purpose : Returns information on a Persian Month for a given Gregorian Date
* @version : 1.00
* @author : Mohsen Alyafei
* @date : 07 Mar 2022
* @Licence : MIT
* @param : {date} a valid Gregorian Date Object
* @returns : An Array of seven (7) elements with the following data:
* [0] The Gregorian Date (the input date) in YYYY-MM-DD format
* [1] The Persian Day (Number) for that date
* [2] The Persian Month (String)
* [3] The Persian Year (Number)
* [4] Total Days in the Persian Month (Number)
* [5] The Gregorian Date that the Persian Month starts on (Date object)
* [6] The Gregorian Date that the Persian Month ends on (Date object)
**********************************************************************/
function getPersianMonthInfo(date) {
let sD=new Date(date),c='en-u-ca-persian-nu-latn',d=sD,gD=0,tD= 0,pD,n='numeric',
iDay =new Intl.DateTimeFormat(c,{day:n}).format(sD),
iMonth=new Intl.DateTimeFormat(c,{month:'long'}).format(sD),
iYear =new Intl.DateTimeFormat(c,{year:n}).format(sD).split(" ")[0];
for (let i=0;i<32;i++) {
pD= new Intl.DateTimeFormat(c,{day:n}).format(d);
if (+pD>tD) tD=pD,gD++; else break;
d=new Date(d.setUTCDate(d.getUTCDate()+1));
}
let gEndT=new Date(sD.setUTCDate(sD.getUTCDate()+gD-2));
return [new Date(date).toISOString().split("T")[0],+iDay,iMonth,+iYear,tD,new Date(gEndT.setUTCDate(gEndT.getUTCDate()-tD+1)),new Date(gEndT)];
}
//==================================================================
//==================================================================
// Test Cases
//==================================================================
output(getPersianMonthInfo(new Date(Date.now()))); // today's date
output(getPersianMonthInfo("2022-04-10")); // 10 April 2022
//==================================================================
function output([gDate, iDay, iMonth, iYear, tD, gStart, gEnd]) {
console.log(`
Gregorian Date : ${gDate}
Persian Day : ${iDay}
Persian Month : ${iMonth}
Persian Year : ${iYear}
Total Days in Persian Month : ${tD}
Persian Month Starts on : ${gStart}
Persian Month Ends on : ${gEnd}
`
);
}
//==================尝试这个代码：
public static DateTime MiladiDateTimeOfLastShamsiDayOfMonth(this DateTime value)
{
PersianCalendar pc = new PersianCalendar();
var datetime = pc.ToDateTime(pc.GetYear(value), pc.GetMonth(value), pc.GetDaysInMonth(value.Year, value.Month), value.Hour, value.Minute, value.Second, value.Millisecond);
return datetime;
}
public static string ShamsiDateTimeOfLastShamsiDayOfMonth(this DateTime value, bool withTime = false)
{
return MiladiToShamsi(MiladiDateTimeOfLastShamsiDayOfMonth(value), withTime);
}
public static string MiladiToShamsi(DateTime dateTime, bool withTime = false)
{
string ret = "";
PersianCalendar pc = new PersianCalendar();
ret = $"{pc.GetYear(dateTime).ToString()}/{pc.GetMonth(dateTime).ToString().PadLeft(2, '0')}/{pc.GetDayOfMonth(dateTime).ToString().PadLeft(2, '0')}";
if (withTime)
{
ret += " " + dateTime.ToString("HH:mm:ss");
}
return ret;
}