如何迭代json并保存到列表？

def iterate_json(json_data, result_list):
    if isinstance(json_data, dict):
        for key, value in json_data.items():
            if isinstance(value, (dict, list)):
                iterate_json(value, result_list)
            else:
                result_list.append((key, value))
    elif isinstance(json_data, list):
        for item in json_data:
            iterate_json(item, result_list)

import json

json_data = '''
{
  "name": "John",
  "age": 30,
  "city": "New York",
  "pets": [
    {
      "name": "Fluffy",
      "type": "cat"
    },
    {
      "name": "Fido",
      "type": "dog"
    }
  ]
}
'''

data = json.loads(json_data)
result = []
iterate_json(data, result)

for key, value in result:
    print(key, value)

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