使用for循环访问嵌套的JSON元素

def traverse_json(json_data):
    if isinstance(json_data, dict):
        for key, value in json_data.items():
            if isinstance(value, (dict, list)):
                traverse_json(value)
            else:
                print(f"Key: {key}, Value: {value}")
    elif isinstance(json_data, list):
        for item in json_data:
            traverse_json(item)

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

traverse_json(json_data)