Python---serial

import pickle
import pickletools
import json

def pickle1():
list1={}
list1['name']='jack'
list1['age']=22
with open('data.pickle', mode='wb') as file:
pickle.dump(list1, file)

def pickle2():
with open('data.pickle', mode='rb') as file:
list1=pickle.load(file)
print(list1)

def pickle4():
with open('data.pickle', mode='rb') as file:
pickletools.dis(file)

def pickle3():
list1={}
list1['name']='hellen'
list1['age']=18
b=pickle.dumps(list1)
list2=pickle.loads(b)
print(list2)

def json1():
list1={}
list1['name']='cindy'
list1['age']=29
with open('data.json', mode='w', encoding='utf-8') as f:
json.dump(list1, f, indent=2)
'''
1. mode,encoding: json is based on character, so mode should not be byte, encoding should be set
2. indent: one value as one line
3. data type in json and python:
dictionary--------json: object
list-----------json:array
string-------json:string
integer------json:integer
True---------json:true
False--------json:false
None--------json:null
float--------json:real number
'''

def json2():
with open('data.json', mode='r', encoding='utf-8') as f:
list1 = json.load(f)
print(list1)

if __name__ == '__main__':
pickle1()
pickle2()
pickle3()
pickle4()
json1()
json2()