如何用Python提取嵌套的JSON数据？

{
    "name": "John",
    "age": 30,
    "address": {
        "street": "123 Elm St",
        "city": "Springfield",
        "zipcode": "12345"
    },
    "skills": [
        {"name": "Python", "level": "Advanced"},
        {"name": "JavaScript", "level": "Intermediate"}
    ]
}

import json

# 假设json_data是包含上述JSON数据的字符串
json_data = '''
{
    "name": "John",
    "age": 30,
    "address": {
        "street": "123 Elm St",
        "city": "Springfield",
        "zipcode": "12345"
    },
    "skills": [
        {"name": "Python", "level": "Advanced"},
        {"name": "JavaScript", "level": "Intermediate"}
    ]
}
'''

# 将JSON字符串转换为Python字典
data = json.loads(json_data)

# 提取简单的键值对
name = data['name']
age = data['age']

# 提取嵌套的字典数据
street = data['address']['street']
city = data['address']['city']
zipcode = data['address']['zipcode']

# 提取嵌套的列表数据
skills = data['skills']
for skill in skills:
    print(f"Skill: {skill['name']}, Level: {skill['level']}")

print(f"Name: {name}, Age: {age}")
print(f"Address: {street}, {city}, {zipcode}")