需要更新Json节点中的值

import json

# 假设要更新的Json数据
json_data = '''
{
  "person": {
    "name": "John",
    "age": 30,
    "address": {
      "city": "New York",
      "country": "USA"
    }
  }
}
'''

# 解析Json数据
data = json.loads(json_data)

# 定位要更新的节点
node_path = "person.name"

# 更新节点的值
node_value = "Mike"
keys = node_path.split('.')
current_node = data
for key in keys[:-1]:
    current_node = current_node[key]
current_node[keys[-1]] = node_value

# 序列化Json数据
updated_json_data = json.dumps(data)

print(updated_json_data)

{
  "person": {
    "name": "Mike",
    "age": 30,
    "address": {
      "city": "New York",
      "country": "USA"
    }
  }
}