//C# 获取农历日期

///<summary>

/// 实例化一个 ChineseLunisolarCalendar

///</summary>

private static  ChineseLunisolarCalendar ChineseCalendar =new ChineseLunisolarCalendar();

 

///<summary>

/// 十天干

///</summary>

private static string[] tg = { "甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸" };

 

///<summary>

/// 十二地支

///</summary>

private static string[] dz = { "子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥" };

 

///<summary>

/// 十二生肖

///</summary>

private static string[] sx = { "鼠", "牛", "虎", "免", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪" };

 

///<summary>

/// 返回农历天干地支年

///</summary>

///<param name="year">农历年</param>

///<return s></return s>

public static string GetLunisolarYear(int year)

{

    if (year >)

    {

        int tgIndex = (year -) %;

        int dzIndex = (year -) %;

         

        return string.Concat(tg[tgIndex], dz[dzIndex], "[", sx[dzIndex], "]");

    }

     

    throw new ArgumentOutOfRangeException("无效的年份!");

}

 

///<summary>

/// 农历月

///</summary>

 

///<return s></return s>

private static string[] months = { "正", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二(腊)" };

 

///<summary>

/// 农历日

///</summary>

private static string[] days1 = { "初", "十", "廿", "三" };

///<summary>

/// 农历日

///</summary>

private static string[] days = { "一", "二", "三", "四", "五", "六", "七", "八", "九", "十" };

 

 

///<summary>

/// 返回农历月

///</summary>

///<param name="month">月份</param>

///<return s></return s>

public static string GetLunisolarMonth(int month)

{

    if (month < && month >)

    {

        return  months[month -];

    }

     

    throw  new ArgumentOutOfRangeException("无效的月份!");

}

 

///<summary>

/// 返回农历日

///</summary>

///<param name="day">天</param>

///<return s></return s>

public static string GetLunisolarDay(int day)

{

    if (day > && day <)

    {

        if (day != && day !=)

        {

            return string.Concat(days1[(day -) /], days[(day -) %]);

        }

        else

        {

            return string.Concat(days[(day -) /], days1[]);

         }

    }

     

    throw new ArgumentOutOfRangeException("无效的日!");

}

 

 

 

///<summary>

/// 根据公历获取农历日期

///</summary>

///<param name="datetime">公历日期</param>

///<return s></return s>

public static string GetChineseDateTime(DateTime datetime)

{

    int year = ChineseCalendar.GetYear(datetime);

    int month = ChineseCalendar.GetMonth(datetime);

    int day = ChineseCalendar.GetDayOfMonth(datetime);

    //获取闰月， 0 则表示没有闰月

    int leapMonth = ChineseCalendar.GetLeapMonth(year);

     

    bool isleap =false;

     

    if (leapMonth >)

    {

        if (leapMonth == month)

        {

        //闰月

            isleap =true;

            month--;

        }

        else if (month > leapMonth)

        {

             month--;

        }

    }

     

    return string.Concat(GetLunisolarYear(year), "年", isleap ?"闰" : string.Empty, GetLunisolarMonth(month), "月", GetLunisolarDay(day));

}