如何从嵌套的JSON中获取数据？

import json

# 假设有一个嵌套的JSON字符串
json_str = '''
{
  "name": "John",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "New York",
    "country": "USA"
  },
  "skills": ["programming", "web development", "data analysis"]
}
'''

# 解析JSON
data = json.loads(json_str)

# 导航到目标数据
name = data["name"]
street = data["address"]["street"]
skills = data["skills"]

# 提取数据
print("Name:", name)
print("Street:", street)
print("Skills:", skills)

Name: John
Street: 123 Main St
Skills: ['programming', 'web development', 'data analysis']