如何设置在函数中作为参数传递的对象的状态？

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

def update_person(person):
    person.age += 1

p = Person("Alice", 25)
update_person(p)
print(p.age)  # 输出 26

import copy

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

def update_person(person):
    person.age += 1

p = Person("Alice", 25)
p_copy = copy.deepcopy(p)
update_person(p_copy)
print(p.age)  # 输出 25，原始对象的状态未改变
print(p_copy.age)  # 输出 26

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

def update_person(person):
    person.age += 1
    return person

p = Person("Alice", 25)
p = update_person(p)
print(p.age)  # 输出 26