时间戳

    public static string GetDate(long time)
    {
        System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1, 0, 0, 0, 0));
        DateTime dt = startTime.AddMilliseconds(time);
        string t = dt.ToString("yyyy/MM/dd HH:mm");
        return t;
    }

    public static long GetTimeTicks(DateTime time)
    {
        return (time.ToUniversalTime().Ticks - 621355968000000000) / 10000000;
    }