我有機會用 dict 增強重寫下面的代碼嗎？（如果我命名正確，意思是{k: v for k, v in ...}）
list_of_dicts = [{'a': 1}, {'b': 2}, {'b': 20, 'c': 3}, {'a': 10, 'b': 2}]
for k, v in [p for d in list_of_dicts for p in d.items()]:
d[k] = d.setdefault(k, set()) | {v}
uj5u.com熱心網友回復：
確定為什么不:)。但它有點嵌套??
import itertools
list_of_dicts = [{'a': 1}, {'b': 2}, {'b': 20, 'c': 3}, {'a': 10, 'b': 2}]
o = {k: {d[k] for d in list_of_dicts if k in d} for k in itertools.chain.from_iterable(list_of_dicts)}
print(o)
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標籤：Python 字典 python-3.10