JSON and Pickle serialization modules

One, JSON serialization module

1. Serialization: The memory data is converted into a string to be saved.

2. Deserialization: The string is converted into memory data for reading.

data = {'Beijing':{                     'Five crossing':{                         'Sohu':'engine',                     }                   } }#Dumps <--> loads" "What is the meaning of turning the data type into a string into memory (json.dumps,json.loads)? 1. Remote sharing of your memory data to other people through the network 2, define the interaction rules between different languages <1> Plain text: cannot share complex data types <2> xml: Large space <3> JSON : Simple, good readability" "D= Json.dumps (data)#convert only to string <class ' str ' >Print(D,type (d))#{"\u5317\u4eac": {"\u4e94\u9053\u53e3": {"Sohu": "\u5f15\u64ce" }}}d_1= Json.loads (d)#Convert string to original data type <class ' Dict ' >Print(D_1,type (D_1))#{' Beijing ': {' Five crossings ': {' Sohu ': ' Engine ' }}}#Dump <--> Loadf = open ('Test.json','W')#first Open and then read and writeD2 = Json.dump (data,f)#turn into a string and write to a fileF1= Open ('Test.json','R') D_2= Json.load (F1)#convert a file to the original data typePrint(d_2)#{' Beijing ': {' Five crossings ': {' Sohu ': ' Engine ' }}}

Second, pickle serialization module

#! /usr/bin/env Python3#-*-coding:utf-8-*-#Write by CongcongImportpickledict= {'name':'cc',' Age': 21}len= ['python','Hello',' World']#Dumps <--> loadsD = Pickle.dumps (dict)#string converted to bytes typePrint(d)#B ' \x80\x03}q\x00 (x\x04\x00\x00\x00nameq\x01x\x02\x00\x00\x00ccq\x02x\x03\x00\x00\x00ageq\x03k\x15u. ' )D_1 = Pickle.loads (d)#bytes Type to original data type#print (d_1) # {' Name ': ' CC ', ' Age ': +}#Dump <--> Load#pk = open (' Data.pkl ', ' WB ')#D2 = Pickle.dump (DICT,PK) # string is converted to bytes type and saved to hard diskPk_r= Open ('DATA.PKL','RB')#Convert the bytes type in the hard drive to the original data typeD_2 =pickle.load (pk_r)Print(d_2)#{' name ': ' CC ', ' Age ': +}" "the difference between JSON and Pickle: JSON supports data types STR, int., tuple, list, dict, and can support all data types in Python in a cross-language pickle, but only in Python " "

JSON and Pickle serialization modules