import pickle
a = [1, 2, 3]
with open('a.pk', 'wb') as f:
pickle.dump(a, f)
import pickle
with open('a.pk', 'rb') as f:
a = pickle.load(f)
print(a)
# python2使用cpickle， 被python3弃用，直接pickle
import pickle
a = [1, 2, 3]
with open('a.pk', 'wb') as f:
pickle.dump(a, f)
import pickle
with open('a.pk', 'rb') as f:
a = pickle.load(f)
print(a)
# python2使用cpickle， 被python3弃用，直接pickle
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