??JSON????????Python???????

JSON?JavaScript Object Notation?????JavaScript??????????????????????????????????????????????????????????????????Python?????JSON???

JSON?????

JSON????????????

??????JSON??????????????????Python?????

??????????????????????????

????????{???}?????????????????????????

???????JSON???????

{  "name": "zhuxiao5"}

??Python?????????

????JSON???????????

{  "animals": {    "dog": [      {        "name": "Rufus",        "age": 15      },      {        "name": "Marty",        "age": null      }    ]  }}

???????????????????Python??JSON?????

Python??JSON??

Python??????JSON?????json.dumps()?json.loads()????????

json.dumps()??Python?????JSON??????

json.loads()??JSON????????Python???

????????????????????JSON????

import jsondict_data = {"a": 1, "b": 2}dump_data = json.dumps(dict_data)load_data = json.loads(dump_data)print(type(dict_data), dict_data)print(type(dump_data), dump_data)print(type(load_data), load_data)

???????


   
     {'a': 1, 'b': 2}
    
       {"a": 1, "b": 2}
     
       {'a': 1, 'b': 2}

??json.dumps()?json.loads()?????????????????????

????JSON??

??????????JSON?????????????????JSON?????

JSON.cn????????JSON??????????????

JSONLint?????JSON????????

?????JSON.cn??????????JSON???

JsonPath??JSON???????

?XML?XPATH???JSON???????????JsonPath?????JSON??????????

?????JSON???

{  "animals": {    "dog": [      {        "name": "Rufus",        "age": 15      },      {        "name": "Marty",        "age": null      }    ]  }}

??????JsonPath?????????????

$..name

?Python??????jsonpath?????

import jsonfrom jsonpath import jsonpathload_data = json.loads(dump_data)jobs = load_data['animals']['dog']result2 = []for job in jobs:    result2.append(jsonpath(jsonpath(job, '$..name')[0]))print(result2)

???????

['Rufus', 'Marty']

??JsonPath?????????JSON??????????

???????????????

????????????????????????????????

import jsonimport requestsimport timedef get_comments(url):    data = []    doc = get_json(url)    jobs = doc['hotComments']    for job in jobs:        dic = {}        dic['content'] = jsonpath(jsonpath(job, '$..content')[0])        dic['time'] = time.stampToTime(jsonpath(jsonpath(job, '$..time')[0]))        dic['userId'] = jsonpath(jsonpath(job['user'], '$..userId')[0])        dic['nickname'] = jsonpath(jsonpath(job['user'], '$..nickname')[0])        dic['likedCount'] = jsonpath(jsonpath(job, '$..likedCount')[0])        data.append(dic)    return pd.DataFrame(data)

???????????get_json??????????JSON???