python json爬虫如何处理嵌套json

在Python中，处理嵌套的JSON数据非常简单

import json

# 示例嵌套 JSON 数据
nested_json = '''
{
    "name": "John",
    "age": 30,
    "city": "New York",
    "hobbies": [
        "reading",
        "traveling",
        {
            "type": "sports",
            "name": "basketball"
        }
    ]
}
'''

# 将 JSON 字符串解析为 Python 字典
data = https://www.yisu.com/ask/json.loads(nested_json)"name"]
age = data["age"]
city = data["city"]
hobbies = data["hobbies"]

print(f"Name: {name}")
print(f"Age: {age}")
print(f"City: {city}")
print(f"Hobbies: {hobbies}")

# 访问嵌套的兴趣爱好
for hobby in hobbies:
    if isinstance(hobby, list):
        for item in hobby:
            if isinstance(item, dict):
                print(f"Nested hobby type: {item['type']}, name: {item['name']}")
            else:
                print(f"Hobby: {item}")
    else:
        print(f"Hobby: {hobby}")

在这个示例中，我们首先导入了json模块，然后定义了一个包含嵌套JSON数据的字符串nested_json。接下来，我们使用json.loads()函数将JSON字符串解析为Python字典。最后，我们通过访问字典的键来获取嵌套的JSON数据，并使用isinstance()函数来检查数据的类型。