当我_init*()在引导程序中的函数中返回时，它实际上做了什么？这样我就可以说：
$x = $this->bootstrap('something');
哦，或者是为了让我可以做一个$this->getResource('something'). 如果我不退货，以后就无法获得资源？
另外，当我这样做时，$x = $this->bootstrap('something');我猜那会在bootstrap()自动运行之前？那是什么时候？
当我这样做时，$x = $application->getOption('something');我从配置中获取了“某物”数组？我真的需要先做$application->getBootstrap()->bootstrap('something')吗？
$x = $this->getResource('something'); its used to Initialize and retrieve a "something" resource so you can use that resource else where in the app
$x = $this->bootstrap('something');
is used to to bootstrap the 'something' resource like DB , View ...etc in other words [to ensure that the something resource is initialized]
while
$x = $application->getOption('something');
is used to read the config file of the 'something' resource it should be like
resources.frontController.controllerDirectory = APPLICATION_PATH "/controllers"
resources.layout.layoutPath = APPLICATION_PATH "/layouts/scripts"
highly recommend you to check the quick start