在Python語言中，json數(shù)據(jù)與dict字典以及對象之間的轉(zhuǎn)化，是必不可少的操做。python

在Python中自帶json庫。經(jīng)過import json導(dǎo)入。json

在json模塊有2個(gè)方法，學(xué)習(xí)

loads()：將json數(shù)據(jù)轉(zhuǎn)化成dict數(shù)據(jù)

dumps()：將dict數(shù)據(jù)轉(zhuǎn)化成json數(shù)據(jù)

load()：讀取json文件數(shù)據(jù)，轉(zhuǎn)成dict數(shù)據(jù)

dump()：將dict數(shù)據(jù)轉(zhuǎn)化成json數(shù)據(jù)后寫入json文件

下面是具體的示例：code

dict字典轉(zhuǎn)json數(shù)據(jù)對象

import json

def dict_to_json():

dict = {}

dict['name'] = 'many'

dict['age'] = 10

dict['sex'] = 'male'

print(dict) # 輸出：{'name': 'many', 'age': 10, 'sex': 'male'}

j = json.dumps(dict)

print(j) # 輸出：{"name": "many", "age": 10, "sex": "male"}

if __name__ == '__main__':

dict_to_json()

對象轉(zhuǎn)json數(shù)據(jù)it

import json

def obj_to_json():

stu = Student('007', '007', 28, 'male', '13000000000', '123@qq.com')

print(type(stu)) #

stu = stu.__dict__ # 將對象轉(zhuǎn)成dict字典

print(type(stu)) #

print(stu) # {'id': '007', 'name': '007', 'age': 28, 'sex': 'male', 'phone': '13000000000', 'email': '123@qq.com'}

j = json.dumps(obj=stu)

print(j) # {"id": "007", "name": "007", "age": 28, "sex": "male", "phone": "13000000000", "email": "123@qq.com"}

if __name__ == '__main__':

obj_to_json()

json數(shù)據(jù)轉(zhuǎn)成dict字典學(xué)習(xí)資料

import json

def json_to_dict():

j = '{"id": "007", "name": "007", "age": 28, "sex": "male", "phone": "13000000000", "email": "123@qq.com"}'

dict = json.loads(s=j)

print(dict) # {'id': '007', 'name': '007', 'age': 28, 'sex': 'male', 'phone': '13000000000', 'email': '123@qq.com'}

if __name__ == '__main__':

json_to_dict()

PS：遇到問題沒人解答？須要Python學(xué)習(xí)資料？能夠加點(diǎn)擊下方連接自行獲取 note.youdao.com/noteshare?id=2dce86d0c2588ae7c0a88bee34324d76class

json數(shù)據(jù)轉(zhuǎn)成對象test

import json

def json_to_obj():

j = '{"id": "007", "name": "007", "age": 28, "sex": "male", "phone": "13000000000", "email": "123@qq.com"}'

dict = json.loads(s=j)

stu = Student()

stu.__dict__ = dict

print('id: ' + stu.id + ' name: ' + stu.name + ' age: ' + str(stu.age) + ' sex: ' + str(

stu.sex) + ' phone: ' + stu.phone + ' email: ' + stu.email) # id: 007 name: 007 age: 28 sex: male phone: 13000000000 email: 123@qq.com

if __name__ == '__main__':

json_to_obj()

json的load()與dump()方法的使用email

dump()方法的使用

import json

def dict_to_json_write_file():

dict = {}

dict['name'] = 'many'

dict['age'] = 10

dict['sex'] = 'male'

print(dict) # {'name': 'many', 'age': 10, 'sex': 'male'}

with open('1.json', 'w') as f:

json.dump(dict, f) # 會在目錄下生成一個(gè)1.json的文件，文件內(nèi)容是dict數(shù)據(jù)轉(zhuǎn)成的json數(shù)據(jù)

if __name__ == '__main__':

dict_to_json_write_file()

load()的使用

import json

def json_file_to_dict():

with open('1.json', 'r') as f:

dict = json.load(fp=f)

print(dict) # {'name': 'many', 'age': 10, 'sex': 'male'}

if __name__ == '__main__':

json_file_to_dict()

總結(jié)

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