我在文件中有此JSON:
JSON
{ "maps": [ { "id": "blabla", "iscategorical": "0" }, { "id": "blabla", "iscategorical": "0" } ], "masks": [ "id": "valore" ], "om_points": "value", "parameters": [ "id": "valore" ] }
我编写了以下脚本来打印所有JSON数据:
import json from pprint import pprint with open('data.json') as f: data = json.load(f) pprint(data)
但是,该程序会引发异常:
Traceback (most recent call last): File "<pyshell#1>", line 5, in <module> data = json.load(f) File "/usr/lib/python3.5/json/__init__.py", line 319, in loads return _default_decoder.decode(s) File "/usr/lib/python3.5/json/decoder.py", line 339, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) File "/usr/lib/python3.5/json/decoder.py", line 355, in raw_decode obj, end = self.scan_once(s, idx) json.decoder.JSONDecodeError: Expecting ',' delimiter: line 13 column 13 (char 213)
如何解析JSON并提取其值?
你的数据不是有效的JSON格式。你有[]什么时候应该拥有{}:
[]
{}
list
dict
JSON文件的外观如下:
{ "maps": [ { "id": "blabla", "iscategorical": "0" }, { "id": "blabla", "iscategorical": "0" } ], "masks": { "id": "valore" }, "om_points": "value", "parameters": { "id": "valore" } }
然后,你可以使用你的代码:
有了数据,你现在还可以找到类似的值:
data["maps"][0]["id"] data["masks"]["id"] data["om_points"]
试试看,看看是否有意义。