Python 基础

import pickle

d = {"name":"cmz","age":18}
l = [1,2,4,5]
pk = open("data.pkl","w")
print(pickle.dumps(d))

输出是bytes

C:Python35python.exe D:/luffy/第二章/pickle测试.py
b'x80x03}qx00(Xx03x00x00x00ageqx01Kx12Xx04x00x00x00nameqx02Xx03x00x00x00cmzqx03u.'

Process finished with exit code 0

pickle 序列化（写入文件）

d = {"name":"cmz","age":18}
l = [1,2,4,5]
pk = open("data.pkl", "wb")
pickle.dump(d, pk)

pickle 反序列化（从文件读出）

# 读出文件
f = open("data.pkl", "rb")
d = pickle.load(f)
print(d)
输出的是
{'name': 'cmz', 'age': 18}

json 支持的数据类型

    str,int,tuple,list,dict，可跨平台

pickle 支持的数据类型

　支持python里面的所有数据类型，只能在python中使用