Yii框架页面运行流程
CComponent
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CModel
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CActiveRecord、CFormModel(所有模型的父类)
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表名.php(模型)
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入口文件--------------------->XxxController------------------>xxx.php
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Controller(所有控制器父类：components文件夹Controller.php)
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CController(framework/web/CController.php)
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CBaseController(framework/web/CBaseController.php)
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CComponent(framework/base/CComponent.php)