将混合嵌套字典转换为列表

def flatten_dict(d):
    result = []
    for key, value in d.items():
        if isinstance(value, dict):
            result.extend(flatten_dict(value))
        else:
            result.append(value)
    return result

nested_dict = {
    'key1': 'value1',
    'key2': {
        'subkey1': 'subvalue1',
        'subkey2': 'subvalue2'
    },
    'key3': 'value3'
}

flattened_list = flatten_dict(nested_dict)
print(flattened_list)

['value1', 'subvalue1', 'subvalue2', 'value3']