使用python生成器访问json对象。

import json

def traverse_json(json_data):
    if isinstance(json_data, dict):
        for key, value in json_data.items():
            yield key, value
            yield from traverse_json(value)
    elif isinstance(json_data, list):
        for item in json_data:
            yield from traverse_json(item)

# 示例JSON数据
json_str = '''
{
    "name": "John",
    "age": 30,
    "city": "New York",
    "pets": [
        {
            "name": "Fluffy",
            "type": "cat"
        },
        {
            "name": "Buddy",
            "type": "dog"
        }
    ]
}
'''

# 解析JSON数据
json_data = json.loads(json_str)

# 遍历JSON对象
for key, value in traverse_json(json_data):
    print(key, value)

name John
age 30
city New York
name Fluffy
type cat
name Buddy
type dog