**一.繼承規則不適用于Final Private方法** ~~~ class Foo { final private function testFoo(){} } class ChildFoo extends Foo{ private function testFoo(){ echo 123; } public function show(){ $this->testFoo(); } } $obj=new ChildFoo; $obj->show(); ~~~ **二.繼承規則不適用于Static Private方法** ~~~ class Foo { static private function testFoo(){} } class User extends Foo{ public function testFoo(){ echo 123; } } $obj=new User; $obj->testFoo(); ~~~ **三.父類Private方法在子類中可出現同名抽象化方法** ~~~ class Foo { private function testFoo(){} } abstract class User extends Foo{ abstract function testFoo(); } class Person extends User{ public function testFoo(){ echo 123; } } $obj=new Person; $obj->testFoo(); ~~~