35mm接口及25mm接口；USB Type-c接口；lighting接口。用类模式实现耳机接口的转接。给出代码。

抽象类接口：

from abc import ABC, abstractmethod

class HeadphoneInterface(ABC):
    @abstractmethod
    def connect(self):
        pass

3.5mm接口类：

class ThreePointFiveInterface(HeadphoneInterface):
    def connect(self):
        print("Connect to 3.5mm interface.")

2.5mm接口类：

class TwoPointFiveInterface(HeadphoneInterface):
    def connect(self):
        print("Connect to 2.5mm interface.")

USB Type-c接口类：

class TypeCInterface(HeadphoneInterface):
    def connect(self):
        print("Connect to USB Type-C interface.")

lighting接口类：

class LightingInterface(HeadphoneInterface):
    def connect(self):
        print("Connect to Lighting interface.")

转接器类：

class Adapter:
    def __init__(self, interface):
        self.interface = interface

    def connect(self):
        self.interface.connect()

使用示例：

three_point_five = ThreePointFiveInterface()
two_point_five = TwoPointFiveInterface()
type_c = TypeCInterface()
lighting = LightingInterface()

adapter1 = Adapter(three_point_five)
adapter2 = Adapter(two_point_five)
adapter3 = Adapter(type_c)
adapter4 = Adapter(lighting)

adapter1.connect() # Connect to 3.5mm interface.
adapter2.connect() # Connect to 2.5mm interface.
adapter3.connect() # Connect to USB Type-C interface.
adapter4.connect() # Connect to Lighting interface.
``