Util/DateHelper.cs

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using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;

namespace Util
{
    public class DateHelper
    {
        //C# 获取农历日期

        /// <summary>
        /// 返回日期全格式 
        /// </summary>
        /// <param name="dt"></param>
        /// <returns></returns>
        public static string GetFullStringWithDateTime(DateTime dt)
        {
            DateTime now = DateTime.Now;
            int n = (int)now.DayOfWeek;
            string[] weekDays = { "星期天", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" };

            return dt.ToLongDateString() + " " + weekDays[n] + " " + dt.ToLongTimeString();
        }

        ///<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 > 3)
            {
                int tgIndex = (year - 4) % 10;
                int dzIndex = (year - 4) % 12;

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