如何检查整个json行中的重复项？

import json

def check_duplicate(json_data):
    def traverse(obj, seen):
        if isinstance(obj, dict):
            for key, value in obj.items():
                if key in seen:
                    print("重复的键:", key)
                else:
                    seen.add(key)
                traverse(value, seen)
        elif isinstance(obj, list):
            for item in obj:
                traverse(item, seen)
        else:
            if obj in seen:
                print("重复的值:", obj)
            else:
                seen.add(obj)

    data = json.loads(json_data)
    traverse(data, set())

# 示例JSON数据
json_data = '''
{
    "name": "John",
    "age": 30,
    "address": {
        "street": "123 Main St",
        "city": "New York"
    },
    "hobbies": ["reading", "writing", "reading"]
}
'''

check_duplicate(json_data)