Python请求数据,r = response.json(),提取字段报TypeError: list indices must be integers or slices, not str[已解决]

# encoding:utf-8

r = {
  "atomicElapsed": 74,
  "data": {
    "pageCount": 0,
    "pageData": [
      {
        "batchLock": 0,
        "batchNo": "882211080000016",
        "companyCode": "CRV",
        "createTime": "2022-11-08 18:44:11",
        "crowdWorkerID": ""
      }
    ]
  },
  "hystrixElapsed": 76,
  "returncode": "0"
}
batchNo = r['data']['pageData']['batchNo']
print("batchNo:{}".format(batchNo))

运行结果如下：

C:\Users\ityw\AppData\Local\Programs\Python\Python39\python.exe C:\Users\ityw\PycharmProjects\pythonProject6\111.py 
Traceback (most recent call last):
  File "C:\Users\ityw\PycharmProjects\pythonProject6\111.py", line 20, in
    batchNo = r['data']['pageData']['batchNo&#