是否可以按字典顺序对冻结集列表进行排序,如下例所示:
sort_frozensets(frozenset(['d','b']), frozenset(['a','b']), frozenset(['z','a']), frozenset(['l',''m]))
#result = frozenset(['a','b']), frozenset(['z','a']), frozenset(['d','b']), frozenset(['l',''m])
所以,它是通过第一项的顺序来排序的,如果第一项相同,则考虑第二项。