如何从子JSON获取数据

import json

# 示例JSON字符串
json_str = '''
{
  "name": "John",
  "age": 30,
  "address": {
    "street": "123 Street",
    "city": "New York",
    "country": "USA"
  }
}
'''

# 解析JSON
data = json.loads(json_str)

# 导航到子JSON并获取数据
street = data["address"]["street"]
city = data["address"]["city"]
country = data["address"]["country"]

# 打印获取的数据
print("Street:", street)
print("City:", city)
print("Country:", country)

Street: 123 Street
City: New York
Country: USA