将dateTime格式转换为Unix时间戳或将Unix时间戳转换为dateTime格式

        #region 将dateTime格式转换为Unix时间戳
        /// <summary>
        /// 将dateTime格式转换为Unix时间戳
        /// </summary>
        /// <param name="dateTime"></param>
        /// <returns></returns>
        public static int DateTimeToUnixTime(DateTime dateTime)
        {
            return (int)(dateTime - TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1))).TotalSeconds;
        }
        #endregion

        #region 将Unix时间戳转换为dateTime格式
        /// <summary>
        /// 将Unix时间戳转换为dateTime格式
        /// </summary>
        /// <param name="time"></param>
        /// <returns></returns>
        public static DateTime UnixTimeToDateTime(int time)
        {
            if (time < 0)
                throw new ArgumentOutOfRangeException("time is out of range");

            return TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1)).AddSeconds(time);
        }
        #endregion