我认为这是因为创建设置对象时，活动字段采用的是默认值：即false。因此，当您将Active设置为false时，没有任何变化。您必须在更新前从Db加载实体。

I think this is because when you create a Setting object .Active field takes is default value: that is false. So when you set Active to false there is no change. You have to load the entity from the Db before the update.