Yii2 源码阅读 09 - Behavior

|--- yii\base\BaseObject
    |--- Component
        |--- Action
            |--- InlineAction

        |--- Controller
        |--- ErrorHandler
        |--- Model
            |--- DynamicModel

        |--- Request
        |--- Response
        |--- Security
        |--- Theme
        |--- View
        |--- Widget
        |--- yii\di\ServiceLocator
            |--- Module
                |--- Application

    |--- Behavior                  <-- 本节
        |--- ActionFilter

    |--- Event
        |--- ActionEvent
        |--- ModelEvent
        |--- ViewEvent
        |--- WidgetEvent