在python中拆分json数据

{
    "name": "张三",
    "age": 30,
    "email": "zhangsan@example.com",
    "address": {
        "city": "北京",
        "street": "朝阳路"
    },
    "hobbies": ["篮球", "游泳", "阅读"]
}

import json

# JSON字符串
json_str = '''
{
    "name": "张三",
    "age": 30,
    "email": "zhangsan@example.com",
    "address": {
        "city": "北京",
        "street": "朝阳路"
    },
    "hobbies": ["篮球", "游泳", "阅读"]
}
'''

# 解析JSON字符串
data = json.loads(json_str)

# 提取数据
name = data['name']
age = data['age']
city = data['address']['city']
hobbies = data['hobbies']

print(f"姓名：{name}")
print(f"年龄：{age}")
print(f"城市：{city}")
print(f"爱好：{', '.join(hobbies)}")

import json

json_str = '这是一个无效的JSON字符串'

try:
    data = json.loads(json_str)
except json.JSONDecodeError as e:
    print(f"解析错误：{e}")

import json

json_str = '''
{
    "name": "张三",
    "age": 30
}
'''

data = json.loads(json_str)

# 安全地访问键
email = data.get('email', '未提供')
print(f"邮箱：{email}")

# 检查键是否存在
if 'address' in data:
    city = data['address']['city']
else:
    city = '未提供'
print(f"城市：{city}")