python如何取出字典的key

my_dict = dict(name="lowman", age=45, money=998, hourse=None)

my_dict = dict(name="lowman", age=45, money=998, hourse=None)

key_list = my_dict.keys()

print(list(key_list))

['hourse', 'name', 'age', 'money']

item = {"name": "lowman", "age": 27}

data = set(item)

print(data)

{'age', 'name'}