它几乎可以将所有的python对象都转换为二进制的形式存储，这个过程称之为picking，那么从二进制形式转换回对象的过程称为unpickling
import pickle
# m = [1,2,3.21,"小甲鱼",[12]]
# pickle_file = open('text.pkl','wb')
# pickle.dump(m,pickle_file)
# pickle_file.close()
pi = open('text.pkl','rb')
mm=pickle.load(pi)
print(mm)
Processed:
0.013, SQL:
8
