我想从嵌套的字典中提取特定的键、值？

def extract_key_value(nested_dict, target_key):
    result = []
    
    # 递归遍历字典的所有键值对
    for key, value in nested_dict.items():
        if key == target_key:
            result.append(value)
        elif isinstance(value, dict):
            result.extend(extract_key_value(value, target_key))
    
    return result

nested_dict = {
    'a': 1,
    'b': {
        'c': 2,
        'd': {
            'e': 3,
            'f': 4
        }
    },
    'g': 5
}

target_key = 'f'
result = extract_key_value(nested_dict, target_key)
print(result)

[4]