Python - pickle模块

Pickle模块（example转自官方文档）

1. 储存一个数据结构，用dump()方法
   pickle.dump(obj, file, protocol=None, *, fix_imports=True)
   obj: 要储存的数据结构
   file: 存入的文件

   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.pickle', 'wb') as f:
       # Pickle the 'data' dictionary using the highest protocol available.
       pickle.dump(data, f, -1)	
   

2. 加载数据结构，用load()方法
   pickle.load(file, *, fix_imports=True, encoding="ASCII", errors="strict")

   import pickle
   
   with open('data.pickle', 'rb') as f:
       # The protocol version used is detected automatically, so we do not
       # have to specify it.
       data = pickle.load(f)