使用@property与getter和setter

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

    @property
    def name(self):
        return self._name

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

person = Person('Alice', 30)
print(person.name)  # 输出：Alice
print(person.age)   # 输出：30

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

    @property
    def name(self):
        return self._name

    @name.setter
    def name(self, value):
        self._name = value

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

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

person = Person('Alice', 30)
print(person.name)  # 输出：Alice
person.name = 'Bob'
print(person.name)  # 输出：Bob