如何访问具有某个Class属性值的Class实例？

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

# 创建几个Person实例
person1 = Person("Alice", 25)
person2 = Person("Bob", 30)
person3 = Person("Charlie", 35)

# 定义一个函数，用于访问具有某个特定属性值的Person实例
def find_person_with_age(persons, target_age):
    for person in persons:
        if person.age == target_age:
            return person
    return None

# 创建Person实例集合
persons = [person1, person2, person3]

# 查找年龄为30的Person实例
target_person = find_person_with_age(persons, 30)

# 输出结果
if target_person:
    print("找到了年龄为30的Person实例：", target_person.name)
else:
    print("未找到年龄为30的Person实例")