zip(), dict(), itertools.repeat(), list(迭代器)

Posted 2022-01-25 wenlin-gk

*. zip(), dict()
def demo_zip_dict():
    keys = [‘a‘, ‘b‘, ‘c‘]
    values = [1, 2, 3]
    entrys = zip(keys, values)
    print(entrys)
    dictionary = dict(entrys)
    print(dictionary)
----
[(‘a‘, 1), (‘b‘, 2), (‘c‘, 3)]
‘a‘: 1, ‘c‘: 3, ‘b‘: 2

*. itertools.repeat()
def demo_iter_repeat():
    repeat_versions = itertools.repeat("0.0.1")
    images = ("a", "b")
    dic = dict(zip(images, repeat_versions))
    print(dic)
    print(list(dic))
----
‘a‘: ‘0.0.1‘, ‘b‘: ‘0.0.1‘
[‘a‘, ‘b‘]

*. list作用于迭代器，将其转换为list。
list(self.__apps.items())