python - 将类保存到二进制文件中 - Python

Question

我知道可以使用以下方法将类保存到 C++ 中的二进制文件中:

file.write(Class_variable, size_of_class, amount_of_saves, file_where_to_save)

或类似的东西，我想在 python 中使用它，以便更容易地写入和读取大量数据。

我试过这样做:

def Save_Game(player, room):
    address = 'Saves/player'

    file = open(address, 'wb')
    file.write(player)

    address = 'Saves/room'

    file = open(address, 'wb')
    file.write(room)

房间和玩家是类对象。但它说:

TypeError: must be convertible to a buffer, not PlayerMarty

我能做什么？

Answer 1

pickle 是您所需要的。 pickle 模块实现了一种基本但功能强大的算法，用于序列化和反序列化 Python 对象结构。这是一个例子

import pickle

class MyClass:
    def __init__(self,name):
        self.name = name
    def display(self):
        print(self.name)

my = MyClass("someone")
pickle.dump(my, open("myobject", "wb"))
me = pickle.load(open("myobject", "rb"))
me.display()