C# 10位数时间搓 转为DateTime时间类型

1589111411  把这种转为时间类型：

两个方法都可以

 　　　　/// <summary>
        /// 10位时间戳转为C#格式时间
        /// </summary>
        /// <param name=”timeStamp”></param>
        /// <returns></returns>
        public static DateTime ConvertStringToDateTime(string timeStamp)
        {
            Int64 begtime = Convert.ToInt64(timeStamp) * 10000000;
            DateTime dt_1970 = new DateTime(1970, 1, 1, 8, 0, 0);
            long tricks_1970 = dt_1970.Ticks;//1970年1月1日刻度
            long time_tricks = tricks_1970 + begtime;//日志日期刻度
            DateTime dt = new DateTime(time_tricks);//转化为DateTime
            return dt;
        }

    private DateTime StampToDateTime(string time)
        {
            time = time.Substring(0, 10);
            double timestamp = Convert.ToInt64(time);
            System.DateTime dateTime = new System.DateTime(1970, 1, 1, 0, 0, 0, 0);
            dateTime = dateTime.AddSeconds(timestamp).ToLocalTime();
            return dateTime;
        }