Python OOP:是否所有__init__中的self."something“属性都可用于其他类方法？

class Person:
    def __init__(self, name, age):
        self.name = name  # 实例属性
        self.age = age    # 实例属性

    def introduce(self):
        return f"My name is {self.name} and I am {self.age} years old."

# 创建Person类的实例
person = Person("Alice", 30)

# 调用introduce方法，使用了__init__中定义的属性
print(person.introduce())  # 输出: My name is Alice and I am 30 years old.

class Person:
    def __init__(self, name, age):
        self._name = name  # 使用下划线作为私有属性的约定
        self._age = age

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

    @name.setter
    def name(self, value):
        if isinstance(value, str):
            self._name = value
        else:
            raise ValueError("Name must be a string")

# 创建Person类的实例
person = Person("Alice", 30)

# 尝试设置非法的名字
try:
    person.name = 123  # 这将引发ValueError
except ValueError as e:
    print(e)  # 输出: Name must be a string