将数据保存到文件

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, pickle.HIGHEST_PROTOCO)

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)