如何设置属性的成员？

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):
        if value < 0:
            raise ValueError("Age must be a positive number")
        self._age = value

p = Person("Alice", 30)
print(p.name)  # Output: Alice
p.name = "Bob"
print(p.name)  # Output: Bob
p.age = 35
print(p.age)   # Output: 35