参考资料：
https://kite.com/python/answers/how-to-save-a-dictionary-to-a-file-in-python
dictionary_data = {"a": 1, "b": 2}
a_file = open("data.pkl", "wb")
pickle.dump(dictionary_data, a_file)
a_file.close()
a_file = open("data.pkl", "rb")
output = pickle.load(a_file)
print(output)
## OUTPUT
## {‘a‘: 1, ‘b‘: 2}
a_file.close()
原文：https://www.cnblogs.com/chester-cs/p/12941517.html