/// <summary>
        /// 删除Google Task
        /// </summary>
        private void DeleteGoogleTask(GoogleTaskSyncData taskData, TasksService googleTaskService, TaskList defaultTaskList)
        {
            bool success = false;

            try
            {
                googleTaskService.Tasks.Delete(defaultTaskList.Id, taskData.Id).Fetch();
                _logger.InfoFormat("删除Google任务#{0}|{1}|{2}", taskData.Id, taskData.Subject, _account.ID);
                success = true;
            }
            catch (Exception ex)
            {
                _logger.Error("DeleteGoogleTask has exception.", ex);
            }

            if (success)
            {
                //删除同步信息
                SyncInfo syncInfo = new SyncInfo();
                syncInfo.AccountId    = _account.ID;
                syncInfo.LocalDataId  = taskData.SyncId;
                syncInfo.SyncDataId   = taskData.Id;
                syncInfo.SyncDataType = taskData.SyncType;
                DeleteSyncInfo(syncInfo);
            }
        }
        /// <summary>
        /// 创建Google Task
        /// </summary>
        private void CreateGoogleTask(GoogleTaskSyncData taskData, TasksService googleTaskService, TaskList defaultTaskList)
        {
            global::Google.Apis.Tasks.v1.Data.Task googleTask = null;
            bool success = false;

            try
            {
                //创建Google Task
                googleTask = googleTaskService.Tasks.Insert(taskData.GoogleTask, defaultTaskList.Id).Fetch();
                _logger.InfoFormat("新增Google任务#{0}|{1}|{2}", googleTask.Id, googleTask.Title, _account.ID);
                success = true;
            }
            catch (Exception ex)
            {
                _logger.Error("CreateGoogleTask has exception.", ex);
            }

            if (success)
            {
                //更新任务最后更新时间,确保与Google Task的最后更新时间一致
                UpdateTaskLastUpdateTime(long.Parse(taskData.SyncId), Rfc3339DateTime.Parse(googleTask.Updated).ToLocalTime());

                //创建同步信息
                if (defaultTaskList.Title == GoogleSyncSettings.DefaultTaskListName)
                {
                    SyncInfo syncInfo = new SyncInfo();
                    syncInfo.AccountId    = _account.ID;
                    syncInfo.LocalDataId  = taskData.SyncId;
                    syncInfo.SyncDataId   = googleTask.Id;
                    syncInfo.SyncDataType = taskData.SyncType;
                    InsertSyncInfo(syncInfo);
                }
            }
        }
 /// <summary>
 /// 更新Google Task
 /// </summary>
 private void UpdateGoogleTask(GoogleTaskSyncData taskData, TasksService googleTaskService, TaskList defaultTaskList)
 {
     try
     {
         googleTaskService.Tasks.Update(taskData.GoogleTask, defaultTaskList.Id, taskData.Id).Fetch();
         _logger.InfoFormat("更新Google任务#{0}|{1}|{2}", taskData.Id, taskData.Subject, _account.ID);
         var updatedGoogleTask = googleTaskService.Tasks.Get(defaultTaskList.Id, taskData.Id).Fetch();
         UpdateTaskLastUpdateTime(long.Parse(taskData.SyncId), Rfc3339DateTime.Parse(updatedGoogleTask.Updated).ToLocalTime());
     }
     catch (Exception ex)
     {
         _logger.Error("UpdateGoogleTask has exception.", ex);
     }
 }
 /// <summary>
 /// 更新Google Task
 /// </summary>
 private void UpdateGoogleTask(GoogleTaskSyncData taskData, TasksService googleTaskService, TaskList defaultTaskList)
 {
     try
     {
         googleTaskService.Tasks.Update(taskData.GoogleTask, defaultTaskList.Id, taskData.Id).Fetch();
         _logger.InfoFormat("更新Google任务#{0}|{1}|{2}", taskData.Id, taskData.Subject, _account.ID);
         var updatedGoogleTask = googleTaskService.Tasks.Get(defaultTaskList.Id, taskData.Id).Fetch();
         UpdateTaskLastUpdateTime(long.Parse(taskData.SyncId), Rfc3339DateTime.Parse(updatedGoogleTask.Updated).ToLocalTime());
     }
     catch (Exception ex)
     {
         _logger.Error("UpdateGoogleTask has exception.", ex);
     }
 }
        /// <summary>
        /// 删除Google Task
        /// </summary>
        private void DeleteGoogleTask(GoogleTaskSyncData taskData, TasksService googleTaskService, TaskList defaultTaskList)
        {
            bool success = false;

            try
            {
                googleTaskService.Tasks.Delete(defaultTaskList.Id, taskData.Id).Fetch();
                _logger.InfoFormat("删除Google任务#{0}|{1}|{2}", taskData.Id, taskData.Subject, _account.ID);
                success = true;
            }
            catch (Exception ex)
            {
                _logger.Error("DeleteGoogleTask has exception.", ex);
            }

            if (success)
            {
                //删除同步信息
                SyncInfo syncInfo = new SyncInfo();
                syncInfo.AccountId = _account.ID;
                syncInfo.LocalDataId = taskData.SyncId;
                syncInfo.SyncDataId = taskData.Id;
                syncInfo.SyncDataType = taskData.SyncType;
                DeleteSyncInfo(syncInfo);
            }
        }
        /// <summary>
        /// 创建Google Task
        /// </summary>
        private void CreateGoogleTask(GoogleTaskSyncData taskData, TasksService googleTaskService, TaskList defaultTaskList)
        {
            global::Google.Apis.Tasks.v1.Data.Task googleTask = null;
            bool success = false;

            try
            {
                //创建Google Task
                googleTask = googleTaskService.Tasks.Insert(taskData.GoogleTask, defaultTaskList.Id).Fetch();
                _logger.InfoFormat("新增Google任务#{0}|{1}|{2}", googleTask.Id, googleTask.Title, _account.ID);
                success = true;
            }
            catch (Exception ex)
            {
                _logger.Error("CreateGoogleTask has exception.", ex);
            }

            if (success)
            {
                //更新任务最后更新时间,确保与Google Task的最后更新时间一致
                UpdateTaskLastUpdateTime(long.Parse(taskData.SyncId), Rfc3339DateTime.Parse(googleTask.Updated).ToLocalTime());

                //创建同步信息
                if (defaultTaskList.Title == GoogleSyncSettings.DefaultTaskListName)
                {
                    SyncInfo syncInfo = new SyncInfo();
                    syncInfo.AccountId = _account.ID;
                    syncInfo.LocalDataId = taskData.SyncId;
                    syncInfo.SyncDataId = googleTask.Id;
                    syncInfo.SyncDataType = taskData.SyncType;
                    InsertSyncInfo(syncInfo);
                }
            }
        }