将对象保存到二进制文件的有效方法

import pickle

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

person = Person("John", 30)

# 将对象序列化为二进制文件
with open("person.bin", "wb") as f:
    pickle.dump(person, f)

# 从二进制文件反序列化为对象
with open("person.bin", "rb") as f:
    loaded_person = pickle.load(f)

print(loaded_person.name)  # 输出: John
print(loaded_person.age)   # 输出: 30