Python -如何以编程方式添加属性访问器

class Person:
    def __init__(self, age):
        self._age = age

    @property
    def age(self):
        return self._age

person = Person(25)
print(person.age)  # 输出: 25

class Person:
    def __init__(self, age):
        self._age = age

    @property
    def age(self):
        return self._age

    @age.setter
    def age(self, value):
        self._age = value

person = Person(25)
print(person.age)  # 输出: 25

person.age = 30
print(person.age)  # 输出: 30

class Person:
    def __init__(self, age):
        self._age = age

    @property
    def age(self):
        return self._age

    @age.setter
    def age(self, value):
        self._age = value

    @age.deleter
    def age(self):
        del self._age

person = Person(25)
print(person.age)  # 输出: 25

person.age = 30
print(person.age)  # 输出: 30

del person.age
print(person.age)  # 抛出AttributeError异常，属性已被删除