my_set = {('a', 1), ('b', 2), ('c', 3)}set_to_dict = dict(my_set)print(set_to_dict) 4.2. Set 转换为 List 或 Tuple: 由于Set 是无序的,转换为 List 或 Tuple 时顺序不确定,可以通过排序使结果有序。 my_set = {1, 2, 3}set_to_list = sorted(list(my_set))set_to_tupl...
1.set() 语法:set([iterable]) 参数:可迭代对象(可选),a sequence (string, tuple, etc.) or collection (list, set, dictionary, etc.) or an iterator object to be converted into a set 返回值:set集合 作用:去重,因为set集合的本质是无序,不重复的集合。所以转变为set集合的过程就是去重的过程 1...
1.set() 语法:set([iterable]) 参数:可迭代对象(可选),a sequence (string, tuple, etc.) or collection (list, set, dictionary, etc.) or an iterator object to be converted into a set 返回值:set集合 作用:去重,因为set集合的本质是无序,不重复的集合。所以转变为set集合的过程就是去重的过程 1...
>>> numbers_tuple = (6, 9, 3, 1)>>> numbers_set = {5, 5, 10, 1, 0}>>> numbers_tuple_sorted = sorted(numbers_tuple)>>> numbers_set_sorted = sorted(numbers_set)>>> numbers_tuple_sorted[1, 3, 6, 9]>>> numbers_set_sorted[0, 1, 5, 10]>>> tuple(numbers_tuple_sorted...
如果需要将Python2中的cmp函数转换为键函数, 请查看functools.cmp_to_key()。(本教程不会涵盖使用Python 2的任何示例) sorted()也可以在元组和集合上使用, 和在列表的使用非常相似: > > >>> numbers_tuple = (6, 9, 3, 1)>>> numbers_set = {5, 5, 10, 1, 0}>>> numbers_tuple_sorted = so...
4) Using sorted() methodYou can convert a set into the list in a defined order using the sorted() function. The only disadvantage of this function is that the set elements need to be sortable in nature. The example below briefly explains the sorted() method's working for converting set ...
def get_list_dict(): word_list = re.split('[0-9\W]+',openfile) list_no_repeat = set(word_list) dict_word = {} for each_word in list_no_repeat: dict_word[each_word] = word_list.count(each_word) del dict_word['']
reverse is a boolean value. If set to True, then the list elements are sorted as if each comparison were reversed.In general, the key and reverse conversion processes are much faster than specifying an equivalent cmp function. This is because cmp is called multiple times for each list ...
If True is passed, the list is sorted in descending order. key - Comparion is based on this function. Sort in Descending order We can sort a list in descending order by setting reverse to True. numbers = [7, 3, 11, 2, 5] # reverse is set to True numbers.sort(reverse = True)...
Return a new list containing all items from the iterable in ascending order. A custom key function can be supplied to customize the sort order, and the reverse flag can be set to request the result in descending order. 像操作列表一样,sorted()也可同样地用于元组和集合: ...