相关疑难解决方法(0)

我正在尝试通过索引访问dict_key的元素:

test = {'foo': 'bar', 'hello': 'world'}
keys = test.keys()  # dict_keys object

keys.index(0)
AttributeError: 'dict_keys' object has no attribute 'index'

我想得到foo.

同样的:

keys[0]
TypeError: 'dict_keys' object does not support indexing

我怎样才能做到这一点？