/// <summary>
    /// 獲取時(shí)間戳
    /// </summary>
    /// <returns></returns>
    public static string GetTimeStamp(System.DateTime time)
    {
      long ts = ConvertDateTimeToInt(time);
      return ts.ToString();
    }
    /// <summary> 
    /// 將c# DateTime時(shí)間格式轉(zhuǎn)換為Unix時(shí)間戳格式 
    /// </summary> 
    /// <param name="time">時(shí)間</param> 
    /// <returns>long</returns> 
    public static long ConvertDateTimeToInt(System.DateTime time)
    {
      System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1, 0, 0, 0, 0));
      long t = (time.Ticks - startTime.Ticks) / 10000;  //除10000調(diào)整為13位   
      return t;
    }
    /// <summary>    
    /// 時(shí)間戳轉(zhuǎn)為C#格式時(shí)間    
    /// </summary>    
    /// <param name=”timeStamp”></param>    
    /// <returns></returns>    
    private DateTime ConvertStringToDateTime(string timeStamp)
    {
      DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
      long lTime = long.Parse(timeStamp + "0000");
      TimeSpan toNow = new TimeSpan(lTime);
      return dtStart.Add(toNow);
    } 

 /// <summary>
  /// 時(shí)間戳
  /// </summary>
  public class TimeHelp
  {
    /// <summary>
    /// 獲取時(shí)間戳
    /// </summary>
    /// <returns></returns>
    public static string GetTimeStamp(System.DateTime time,int length=13)
    {
      long ts = ConvertDateTimeToInt(time);
      return ts.ToString().Substring(0,length);
    }
    /// <summary> 
    /// 將c# DateTime時(shí)間格式轉(zhuǎn)換為Unix時(shí)間戳格式 
    /// </summary> 
    /// <param name="time">時(shí)間</param> 
    /// <returns>long</returns> 
    public static long ConvertDateTimeToInt(System.DateTime time)
    {
      System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1, 0, 0, 0, 0));
      long t = (time.Ticks - startTime.Ticks) / 10000;  //除10000調(diào)整為13位   
      return t;
    }
    /// <summary>    
    /// 時(shí)間戳轉(zhuǎn)為C#格式時(shí)間    
    /// </summary>    
    /// <param name=”timeStamp”></param>    
    /// <returns></returns>    
    public static DateTime ConvertStringToDateTime(string timeStamp)
    {
      DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
      long lTime = long.Parse(timeStamp + "0000");
      TimeSpan toNow = new TimeSpan(lTime);
      return dtStart.Add(toNow);
    }

    /// <summary>
    /// 時(shí)間戳轉(zhuǎn)為C#格式時(shí)間10位
    /// </summary>
    /// <param name="timeStamp">Unix時(shí)間戳格式</param>
    /// <returns>C#格式時(shí)間</returns>
    public static DateTime GetDateTimeFrom1970Ticks(long curSeconds)
    {
      DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
      return dtStart.AddSeconds(curSeconds);
    }

    /// <summary>
    /// 驗(yàn)證時(shí)間戳
    /// </summary>
    /// <param name="time"></param>
    /// <param name="interval">差值（分鐘）</param>
    /// <returns></returns>
    public static bool IsTime(long time, double interval)
    {
      DateTime dt = GetDateTimeFrom1970Ticks(time);
      //取現(xiàn)在時(shí)間
      DateTime dt1 = DateTime.Now.AddMinutes(interval);
      DateTime dt2 = DateTime.Now.AddMinutes(interval * -1);
      if (dt > dt2 && dt < dt1)
      {
        return true;
      }
      else {
        return false;
      }
    }

    /// <summary>
    /// 判斷時(shí)間戳是否正確（驗(yàn)證前8位）
    /// </summary>
    /// <param name="time"></param>
    /// <returns></returns>
    public static bool IsTime(string time)
    {
      string str = GetTimeStamp(DateTime.Now,8);
      if (str.Equals(time))
      {
        return true;
      }
      else {
        return false;
      }
    }
  }