如何遍历字典列表中的嵌套字典？

data = [
    {
        "id": 1,
        "name": "Alice",
        "details": {
            "age": 30,
            "city": "New York"
        }
    },
    {
        "id": 2,
        "name": "Bob",
        "details": {
            "age": 25,
            "city": "Los Angeles"
        }
    }
]

for item in data:
    print(f"ID: {item['id']}, Name: {item['name']}")
    for key, value in item['details'].items():
        print(f"  {key.capitalize()}: {value}")

for item in data:
    print(f"ID: {item.get('id', 'N/A')}, Name: {item.get('name', 'N/A')}")
    details = item.get('details', {})
    for key, value in details.items():
        print(f"  {key.capitalize()}: {value}")

def traverse_dict(d, prefix=''):
    for key, value in d.items():
        new_key = f"{prefix}.{key}" if prefix else key
        if isinstance(value, dict):
            traverse_dict(value, new_key)
        else:
            print(f"{new_key}: {value}")

for item in data:
    traverse_dict(item)