在Python语言中，json数据与dict字典以及对象之间的转化，是必不可少的操做。python

在Python中自带json库。经过import json导入。json

在json模块有2个方法，学习

loads()：将json数据转化成dict数据

dumps()：将dict数据转化成json数据

load()：读取json文件数据，转成dict数据

dump()：将dict数据转化成json数据后写入json文件

下面是具体的示例：code

dict字典转json数据对象

import json

def dict_to_json():

dict = {}

dict['name'] = 'many'

dict['age'] = 10

dict['sex'] = 'male'

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

j = json.dumps(dict)

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

if __name__ == '__main__':

dict_to_json()

对象转json数据it

import json

def obj_to_json():

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

print(type(stu)) #

stu = stu.__dict__ # 将对象转成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数据转成dict字典学习资料

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()

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json数据转成对象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()与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) # 会在目录下生成一个1.json的文件，文件内容是dict数据转成的json数据

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()