C#精确计算年龄的方法分析

using System;
using System.Collections.Generic;
using System.Text;
namespace PublicClass
{
    public static class CalculationDate
    {
        /// <summary>
        /// 由两个日期计算出年龄(岁、月、天)
        /// </summary>
        public static void calculationDate(DateTime beginDateTime, DateTime endDateTime)
        {
            if (beginDateTime > endDateTime)
                throw new Exception("开始时间应小于或等与结束时间！");
            /*计算出生日期到当前日期总月数*/
            int Months = endDateTime.Month - beginDateTime.Month + 12 * (endDateTime.Year - beginDateTime.Year);
            /*出生日期加总月数后，如果大于当前日期则减一个月*/
            int totalMonth = (beginDateTime.AddMonths(Months) > endDateTime) ? Months - 1 : Months;
            /*计算整年*/
            int fullYear = totalMonth / 12;
            /*计算整月*/
            int fullMonth = totalMonth % 12;
            /*计算天数*/
            DateTime changeDate = beginDateTime.AddMonths(totalMonth);
            double days = (endDateTime - changeDate).TotalDays;
        }
    }
}