制作时间戳和时间戳转标准日期时间等

 /// <summary>
        /// DateTime时间格式转换为Unix时间戳格式
        /// </summary>
        /// <param name="time"> DateTime时间格式</param>
        /// <returns>Unix时间戳格式</returns>
        public static long ConvertDateTimeInt(System.DateTime time)
        {
            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
            return (long)(time - startTime).TotalSeconds;
        }

 private string GetTime(string timeStamp)
        {
            DateTime dt = DateTime.Now;
            if (timeStamp.Length == 14)
            {
                dt = DateTime.ParseExact(timeStamp, "yyyyMMddHHmmss", System.Globalization.CultureInfo.CurrentCulture);
            }
            return dt.ToString("yyyy-MM-dd HH:mm:ss");
        }