/// <summary> /// 将当前租期续约一段时间 /// </summary> /// <param name="timeSpan">续约时间</param> /// <returns>返回续约后的到期时间</returns> /// <exception cref="System.Exception">更新失败</exception> public DateTime Renew(TimeSpan timeSpan) { return(_innerContainer.Renew(timeSpan)); }