迭代嵌套字典的键并添加制表符

def iterate_nested_dict(dictionary, indent=0):
    for key, value in dictionary.items():
        print('\t' * indent + str(key))
        if isinstance(value, dict):
            iterate_nested_dict(value, indent + 1)

# 示例字典
nested_dict = {
    'key1': 'value1',
    'key2': {
        'key3': 'value3',
        'key4': {
            'key5': 'value5'
        }
    }
}

# 调用函数进行迭代并添加制表符
iterate_nested_dict(nested_dict)

key1
key2
    key3
    key4
        key5