d = dict.fromkeys(('name','age', 'height'), 'unknown') #we can also make tuples d_tuple = tuple(d) print(d_tuple) # d = dict.fromkeys(('abcd'), 'unknown') #all ...

以下记录python各个版本如何合并两个dict，以及对应的性能如何。 from timeit import repeat from itertools import chain x = dict.fromkeys('abcdefg') y = dict.fromkeys('efghijk') def merge_two_dicts(x, y): z = x.copy() z.update(y) ...