C# 生成时间戳

        /// <summary>
        /// 生成10位时间戳
        /// </summary>
        /// <param name="value">北京时间</param>
        /// <returns></returns>
        public static long GetTimestamp10bit(this DateTime value)
        {
            value = value.AddHours(-8);
            return new DateTimeOffset(value).ToUnixTimeSeconds();
        }

        /// <summary>
        /// 生成13位时间戳
        /// </summary>
        /// <param name="value">北京时间</param>
        /// <returns></returns>
        public static long GetTimestamp13bit(this DateTime value)
        {
            value = value.AddHours(-8);
            return new DateTimeOffset(value).ToUnixTimeSeconds();
        }