Python last示例

示例#1

def test_range():
    assert last(range(0)) is None
    assert last(range(3)) == 2

示例#2

def test_list():
    assert last([]) is None
    assert last([1, 2, 3]) == 3

示例#3

def test_dict():
    assert last(dict()) is None
    assert last(dict({"1": 1, "2": 2, "3": 3})) == "3"

示例#4

def test_str():
    assert last("") is None
    assert last("123") == "3"

示例#5

def test_set():
    assert last({}) is None
    assert last({1, 2, 3}) == 3

示例#6

def test_tuple():
    assert last(tuple()) is None
    assert last((1, 2, 3)) == 3