python 标准库 -- pickle & cPickle

pickle & cPickle

pickle 和 cPickle 除了导入名称不一样之外, 使用方法, 均一样.
pickle 导入 import pickle
cPickle 导入 import cPickle as pickle

cPickle 比 pickle 快很多

pickle.dumps(OBJ) --> 序列化对象

import cPickle as pickle
b = {"name":"tom", "age":12,"job":"dev"}
s=pickle.dumps(b)

pickle.dump(OBJ,f) --> 序列化对象, 并存储到文件

import cPickle as pickle
b = {"name":"tom", "age":12,"job":"dev"}
with open("a.pkl", 'f') as f:
    s=pickle.dump(b,f)

pickle.load(f) --> 从文件加载被序列化的 对象.

import cPickle as pickle
with open("a.pkl",'r') as f:
    b = pickle.load(f)
type(b)