如何编写一个方法来轻松地创建不同类型的子类

class ParentClass:
    def __init__(self, name):
        self.name = name

    def common_method(self):
        print("This is a common method.")

class ChildClass1(ParentClass):
    def __init__(self, name):
        super().__init__(name)

    def specific_method(self):
        print("This is a specific method for ChildClass1.")

class ChildClass2(ParentClass):
    def __init__(self, name):
        super().__init__(name)

    def specific_method(self):
        print("This is a specific method for ChildClass2.")

class ChildClass3(ParentClass):
    def __init__(self, name):
        super().__init__(name)

    def specific_method(self):
        print("This is a specific method for ChildClass3.")

class ClassFactory:
    @staticmethod
    def create_class(class_type, name):
        if class_type == "ChildClass1":
            return ChildClass1(name)
        elif class_type == "ChildClass2":
            return ChildClass2(name)
        elif class_type == "ChildClass3":
            return ChildClass3(name)
        else:
            raise ValueError("Invalid class type.")

# 使用工厂类创建不同类型的子类对象
factory = ClassFactory()
obj1 = factory.create_class("ChildClass1", "Object 1")
obj2 = factory.create_class("ChildClass2", "Object 2")
obj3 = factory.create_class("ChildClass3", "Object 3")

# 调用子类对象的方法
obj1.common_method()
obj1.specific_method()

obj2.common_method()
obj2.specific_method()

obj3.common_method()
obj3.specific_method()