1.jsonpath为第三方模块，需要安装，安装命令为：pip install jsonpath
    2.jsonpath主要是用于字典取值，直接使用jsonpath.jsonpath(d,”$.code”)即可取值
    （1）只取第一个：$.string
    （2）取全部:$..string

    1. import jsonpath
    2. d=d={
    3.     "code": 200,
    4.     "message": "成功!",
    5.     "result": {
    6.         "code":2001,
    7.         "path": "https://www.163.com/dy/article/G1OBC8LO0514BCL4.html",
    8.         "image": "http://dingyue.ws.126.net/2021/0201/b63f2e50j00qntwfh0020c000hs00npg.jpg?imageView&thumbnail=140y88&quality=85",
    9.         "title": "被指偷拿半卷卫生纸 63岁女洗碗工服药自杀 酒店回应",
    10.         "l":[{"msg":"111","money":1}]
    11.     }
    12. }
    13. print(jsonpath.jsonpath(d,"$.code")) #[200]
    14. print(jsonpath.jsonpath(d,"$..code")) #[200, 2001]

    3.函数封装

    1. def get_dict_value(dict,target,one=True):
    2.     '''
    3.     :param dict: 被取值字典
    4.     :param target: 目标字段
    5.     :param one: 用于判断取一条还是1多条
    6.     :return: 取到的字典的值
    7.     '''
    8.     dict_target="$..%s"%target
    9.     data=jsonpath.jsonpath(dict,dict_target)
    10.     if not data:
    11.         return
    12.     if one:
    13.         return data
    14.     return data[0]
    15. if __name__ == '__main__':
    16.     d={"name":"lxp",'age':30,"info":{'name':"lala","age":20}}
    17.     ret=get_dict_value(d,"name",True)
    18.     print(ret)