json. Load (s) and json dump(s)

1、 difference

json.load： Means read json file , return python object
json.dump： It means that you will json Write data to file , File for json String format , No return
json.loads： take json Convert string to dictionary type , return python object
json.dumps： take python The dictionary type in is converted to json character string

load and dump It mainly deals with files
loads and dumps It deals with strings

2、 practice

2.1、json.dumps

import json

dict1 = {
    "age": "12"}
json1 = json.dumps(dict1)   # json.dumps() Use of functions , Translate the dictionary into json character string 
print(json1)

The result of the operation is ：

{
    "age": "12"}

2.2、json.loads

import json

json2 = '{"age": "12"}'
dict2 = json.loads(json2)  # json.loads Use of functions , Convert strings to dictionaries 
print(dict1)

The result of the operation is ：

{
    'age': '12'}

2.3、json.dump

import json

json3 = "{'age': '12'}"
file = open(r'D:\Document\Workspace\pywokrspace\test1\001\1.json','w',encoding='utf-8') 
json.dump(json3,file) # json.dump() Use of functions , take json Write information into the file 

2.4、json.load

import json

file = open(r'D:\Document\Workspace\pywokrspace\test1\001\1.json','r',encoding='utf-8') # json.load() Use of functions , Will read json Information 
json5 = json.load(file)
print(json5)