首先让其自动加载？？？
在YiiBase.php里面 改写autoload方法：
/**
* Class autoload loader.
* This method is provided to be invoked within an __autoload() magic method.
* @param string $className class name
* @return boolean whether the class has been loaded successfully
*/
public static function autoload($className)
{
// use include so that the error PHP file may appear
if(isset(self::$_coreClasses[$className])){
include(YII_PATH.self::$_coreClasses[$className]);
}else if(isset(self::$classMap[$className])){
include(self::$classMap[$className]);
}else{
if(strpos($className,'\')===false)
@include($className.'.php');
else // class name with namespace in PHP 5.3
{
$namespace=str_replace('\','.',ltrim($className,'\'));
if(($path=self::getPathOfAlias($namespace))!==false)
include($path.'.php');
else
return false;
}
return class_exists($className,false) || interface_exists($className,false);
}
return true;
}