如何将json的一部分存储到另一个json文件中

我是json新手，我一直在尝试将json的一部分存储到另一个文件中，因为我认为这样做比删除不需要的元素更容易。我看过一篇关于如何访问json的一部分，然后打印它们但不保存它的帖子。这是我正在使用的json

{
  "Id": "Annual report 2019",
  "Date": "25/11/2019",
  "Schools": [
    {
      "Id": "001",
      "Name": "Sunway College",
      "Numbers of teachers": "113",
      "Number of students": "400",
      "Description": null,
      "Partnership": {
        "Schools": [
          "Lancaster University"
        ]
      },
      "Private": true,
      "Annual Revenue": null
    },
    {
      "Id": "002",
      "Name": "Taylors ",
      "Numbers of teachers": "200",
      "Number of students": "600",
      "Description": null,
      "Partnership": {
        "Schools": [
          "CQ University","Thomas More University of Applied Sciences"
        ]
      },
      "Private": true,
      "Annual Revenue": null
    }
  ],
"Created By":"Bobby Williams",
"Date of data collected":"18/8/2019"
}

我想把它存储在另一个json文件中

{
  "Schools": [
    {
      "Id": "001",
      "Name": "Sunway College",
      "Numbers of teachers": "113",
      "Number of students": "400",
      "Description": null,
      "Partnership": {
        "Schools": [
          "Lancaster University"
        ]
      },
      "Private": true,
      "Annual Revenue": null
    },
    {
      "Id": "002",
      "Name": "Taylors ",
      "Numbers of teachers": "200",
      "Number of students": "600",
      "Description": null,
      "Partnership": {
        "Schools": [
          "CQ University","Thomas More University of Applied Sciences"
        ]
      },
      "Private": true,
      "Annual Revenue": null
    }
  ]
}

---

是否有任何解决方案或帖子可以帮助我？

如果我正确理解您的问题，您希望将json对象的一部分保存到文件中

如果您想要jsonObject的一部分（即

学校

），可以将其指定为另一个变量并存储在文件中。 比如说

def get_part_of_json(jsn_obj, key, file_name): 

    new_jsn_obj = jsn_obj[key] 
    new_str = json.dumps(new_jsn_obj)
    file = open(file_name, 'w')
    file.write(new_str)

def read_jsn_string(string_var): 
    return json.loads(string_var)

因此，当您编写

json.dumps

时，它会将json对象转换为字符串。写入

json.loads

可以得到相应的json对象

---

希望有帮助

谢谢你的回答，我从来没有想过把它作为一个变量，我会试试的，谢谢