using System;
using System.Collections.Generic;
using System.Text;
namespace PublicClass
{
    public static class CalculationDate
    {
        /// <summary>
        /// 由兩個日期計算出年齡(歲、月、天)
        /// </summary>
        public static void calculationDate(DateTime beginDateTime, DateTime endDateTime)
        {
            if (beginDateTime > endDateTime)
                throw new Exception("開始時間應小于或等與結束時間！");
            /*計算出生日期到當前日期總月數*/
            int Months = endDateTime.Month - beginDateTime.Month + 12 * (endDateTime.Year - beginDateTime.Year);
            /*出生日期加總月數后，如果大于當前日期則減一個月*/
            int totalMonth = (beginDateTime.AddMonths(Months) > endDateTime) ? Months - 1 : Months;
            /*計算整年*/
            int fullYear = totalMonth / 12;
            /*計算整月*/
            int fullMonth = totalMonth % 12;
            /*計算天數*/
            DateTime changeDate = beginDateTime.AddMonths(totalMonth);
            double days = (endDateTime - changeDate).TotalDays;
        }
    }
}