Python对象序列化——pickle模块使用方法

官方文档

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下面是最简单的示例：

封存对象：

import pickle

''' An arbitrary collection of objects supported by pickle. '''
data = {
    'a': [1, 2.0, 3, 4+6j],
    'b': ("character string", b"byte string"),
    'c': {None, True, False}
}

with open('data.cfg', 'wb') as f:
    ''' Pickle the 'data' dictionary using the highest protocol available. '''
    pickle.dump(data, f, pickle.HIGHEST_PROTOCOL)  
    

　　这会生成一个data.cfg文件（文件后缀可以自定义，cfg是常用来保存配置信息的格式）

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解封/使用对象：

import pickle 
    
with open('data.cfg', 'rb') as f:
    ''' The protocol version used is detected automatically, so we do not have to specify it. '''
    data = pickle.load(f)
    
print(data['a'])  # [1, 2.0, 3, (4+6j)]

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更多高级用法可阅读官方文档