Python Map.fromkeys示例

示例#1

def test_Map_apply():
    m = Map.fromkeys('abc', lambda x: x + 1)
    n = Map({'a': 1, 'b': 2, 'c': 3})
    o = m * n
    assert o.v == {'a': 2, 'b': 3, 'c': 4}

示例#2

def test_Map_fromkeys():
    m = Map.fromkeys(['a', 'b', 'c'], 1)
    assert isinstance(m, Map)
    assert m.v == {'a': 1, 'b': 1, 'c': 1}
    assert Map.fromkeys(['a']).v == {'a': None}