给定以下字典:
dct = {'a':3, 'b':3,'c':5,'d':3}
如何将这些值应用于列表,例如:
lst = ['c', 'd', 'a', 'b', 'd']
为了得到类似的东西:
lstval = [5, 3, 3, 3, 3]
Using a 列表理解 https://docs.python.org/3/tutorial/datastructures.html#list-comprehensions:
>>> [dct[k] for k in lst]
[5, 3, 3, 3, 3]
Using map https://docs.python.org/3/library/functions.html#map:
>>> [*map(dct.get, lst)]
[5, 3, 3, 3, 3]
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