Json转换为object，然后返回到python中(如java )。

import json

# 定义一个Json字符串
json_str = '{"name": "John", "age": 30, "city": "New York"}'

# 将Json字符串转换为Python对象
data = json.loads(json_str)

# 获取属性值
name = data['name']
age = data['age']
city = data['city']

import json

# 定义一个自定义类
class Person:
    def __init__(self, name, age, city):
        self.name = name
        self.age = age
        self.city = city

# 定义一个转换函数，用于将Json转换为Person对象
def json_to_person(json_str):
    data = json.loads(json_str, object_hook=lambda d: Person(**d))
    return data

# 定义一个Json字符串
json_str = '{"name": "John", "age": 30, "city": "New York"}'

# 将Json转换为Person对象
person = json_to_person(json_str)

# 访问Person对象的属性
name = person.name
age = person.age
city = person.city