时间戳

/// <summary>
/// 获取当前时间的时间戳
/// </summary>
/// <returns></returns>
public static long GetCurrTime()
{
return new DateTimeOffset(DateTime.UtcNow).ToUnixTimeSeconds();
}

/// <summary>
/// 时间戳转换成年月日
/// </summary>
/// <param name="_time"></param>
/// <returns></returns>
public static string GetTime(string _time)
{
string timeStamp = _time;
DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
long lTime = long.Parse(timeStamp + "0000000");
TimeSpan toNow = new TimeSpan(lTime);
DateTime dtResult = dtStart.Add(toNow);
//Debug.LogError("999999===>>>"+dtResult);
string date = dtResult.ToShortDateString().ToString();
string time = dtResult.ToLongTimeString().ToString();
string[] date_arr = date.Split('/');
string[] time_arr = time.Split(':');
string result = date_arr[0] + "年" + date_arr[1] + "月" + date_arr[1] + "日" +" " + time_arr[0] + "时" + time_arr[1] + "分";
return result;
}

/// <summary>
/// 获取当前时间戳与目标时间戳的时间间隔
/// </summary>
/// <param name="dt">时间戳</param>
/// <returns></returns>
public static string GetDateStringFromNow(string dt)
{
string timeStamp = dt;
DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
long lTime = long.Parse(timeStamp + "0000000");
TimeSpan toNow = new TimeSpan(lTime);
DateTime dtResult = dtStart.Add(toNow);
TimeSpan span = DateTime.Now - dtResult;
if (span.TotalDays > 90)
{
return "3个月前";
}
else
if (span.TotalDays > 60)
{
return "2个月前";

}
else if(span.TotalDays > 30)
{

return "1个月前";
}
else if(span.TotalDays > 14)
{
return"2周前";
}
else if(span.TotalDays > 7)
{
return "1周前";
}

else if(span.TotalDays > 1)
{
return string.Format("{0}天前",(int)Math.Floor(span.TotalDays));
}
else if(span.TotalHours > 1)
{
return string.Format("{0}小时前", (int)Math.Floor(span.TotalHours));
}
else if(span.TotalMinutes > 1)
{
return string.Format("{0}分钟前", (int)Math.Floor(span.TotalMinutes));
}
else if(span.TotalSeconds >= 1)
{
return string.Format("{0}秒前",(int)Math.Floor(span.TotalSeconds));
}
else
{
return "1秒前";
}
}