print(df)sa_instance_state data_interval_start NAME <sqlalchemy.orm.state.InstanceState2> 2022-07-17 12:58:00+00:00 abx预期结果:
NAME sa_instance_state data_interval_start
item in e.OldItems) Console.WriteLine("removed: State is now: " + item.InstanceStateitem in e.NewItems) Console.WriteLine("added: State is now: " + item.InstanceStateitem in e.NewItems)