Python Learning path: Son and Pickle serialization

Serialization Implementation Method:

#不实用模块 # info ={#     ' name ': ' Alex ', #     ' age ': 22##}# f = open ("Test.text", "W") # F.write (str (info)) # # f.close () #json Serialization simple data type # import json## info ={#     ' name ': ' Alex ', #     ' age ': 22##}# f = open ("Test.text", "W") # F.write (Json.dumps ( Info) # f.close () #python会跟JAVA, C language interaction, which requires an intermediate interactive language---json, can handle a simple data type # import json# def sayhi (name): #     Print (" Hello, ", name) # # info ={#     ' name ': ' Alex ', #     ' age ': 22,#     ' func ': sayhi##}# f = open (" Test.text "," W ") # F.write ( Json.dumps (info)) #报错, the function is not serializable import Pickle#pickle can serialize all data types in Python def sayhi (name):    print ("Hello,", name) info = {    ' name ': ' Alex ',    ' age ': $,    ' func ': sayhi}f = open ("Test.text", "WB") F.write (Pickle.dumps (info))

Deserialize the appropriate method:

# f = open ("Test.text", "R") # data = eval (F.read ()) # f.close () # # print (data[' age ') # import json## f = open ("Test.text", "R" # data = Json.loads (F.read ()) # # Print (data[' age ') #pickle只能在Python语言内部使用import pickle#f the entire data object to deserialize def sayhi (name):    print ("Hello,", name)    print ("Hello2,", name) F =open ("Test.text", "RB") Data =pickle.loads (F.read ()) #data = Pickle.load (f) Print (data["func"] (' Alex ')

python3.x can be json.dumps multiple times, but only once json.loads, it is recommended that each program only once json.dumps, once json.loads

Import jsoninfo ={    ' name ': ' Alex ',    ' age ': 22}f = open ("Test.text", "W") F.write (Json.dumps (info)) info[' age ']= 21f.write (Json.dumps (info)) F.close ()

Pickle.dumps and Pickle.dump;pickle.loads and Pickle.load

Import Pickle#pickle can serialize all data types in Python def sayhi (name):    print ("Hello,", name) info ={    ' name ': ' Alex ',    ' Age ': '    func ': sayhi}f = open ("Test.text", "WB") Pickle.dump (info,f) #f. Write (Pickle.dumps (info)) F.close ()---- ------------------------------------------------------------#pickle只能在Python语言内部使用import pickle#f Deserialization of the entire data object Def Sayhi (name): Print    ("Hello,", name)    print ("Hello2,", name) F =open ("Test.text", "RB") Data =pickle.loads ( F.read ()) #data =pickle.load (f) Print (data["func"] (' Alex ')

Python Learning path: Son and Pickle serialization