python如何解析json字符串

import json

# 字典类型转换为json字符串

data = {"id": 1, 'name': 'sy', 'passwrd': '123123'}

print(type(data))

json_str = json.dumps(data)

print(type(json_str))

print(json_str)

print("*" * 20)

# json字符串转换为字典类型

json_str2 = '{"programers":[ {"firstName":"Breet","lastName":"MMM","email":"XXX"},'\

            '{"firstName":"Breet","lastName":"MMM","email":"XXX"}], ' \

            '"author": [{"firstName": "su", "lastName": "yang", "email": "XXX"},'\

            '{"firstName": "Breet", "lastName": "MMM", "email": "XXX"}]}'

print(type(json_str2))

data2 = json.loads(json_str2)

print(type(data2))

print(json_str2)

print(data2)

print('*' * 20)

# 将json数据写入文件，用文件传送

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

    json.dump(data, f)

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

    data3 = json.load(f)

    print(type(data3))

    print(data3)