将字典展平为带格式的字符串

def flatten_dict(dictionary, parent_key='', sep='.'):
    items = []
    for key, value in dictionary.items():
        new_key = f"{parent_key}{sep}{key}" if parent_key else key
        if isinstance(value, dict):
            items.extend(flatten_dict(value, new_key, sep=sep).items())
        else:
            items.append((new_key, value))
    return dict(items)

def format_dict(dictionary, indent=4):
    formatted_str = ""
    for key, value in dictionary.items():
        formatted_str += f"{indent * ' '}{key}: {value}\n"
    return formatted_str

nested_dict = {
    'person': {
        'name': 'John',
        'age': 30,
        'address': {
            'street': '123 Main St',
            'city': 'New York',
            'state': 'NY'
        }
    },
    'company': 'ABC Corp',
    'position': 'Engineer'
}

flattened_dict = flatten_dict(nested_dict)
formatted_str = format_dict(flattened_dict)

print(formatted_str)

    person.name: John
    person.age: 30
    person.address.street: 123 Main St
    person.address.city: New York
    person.address.state: NY
    company: ABC Corp
    position: Engineer