使用 python 从 json 文件中的键获取值 [已关闭]

问：

我有一个文件test.json，其中包含以下内容：

 {
  "idCount": "14",
  "id": "XXXX1111",
  "name": "GRMART-111",
  "type": "SHOP",
  "items": [
    {
      "ID": "SLWA1112",
      "RFID": "2DHERJHER231J",
      "name": "Clothes"
    },
    {
      "clothId": "DR12121",
      "clothCount": "2",
      "name": "Dress"
    },
    {
      "clothId": "JN121213",
      "clothCount": "20",
      "name": "Jeans"
    },
    {
      "clothId": "SH123223",
      "cothCount": "67",
      "name": "Shirt"
    },
    {
      "clothId": "PA132323",
      "clothCount": "97",
      "name": "Pants"
    },
    {
      "clothId": "BO123121",
      "clothCount": "73",
      "name": "Boots"
    }
  ]
}

我想提取所有“clothId”的值。输出应如下所示：

[DR12121，JN121213，SH123223，PA132323，BO123121]

我尝试使用以下程序解决此问题

import json
results=[]

f = open('./test.json')
data = json.load(f)

results = [x.get('clothId', None) for x in data]
print(results)

这是我收到的错误：

results = [x.get('clothId', None) for x in data]
AttributeError: 'str' object has no attribute 'get'

你能告诉我我做错了什么以及如何解决这个问题吗？