[2, 0], [1, 2], [1, 1], [2, 0, 3]])#或者传入lambda匿名函数mylist2.sort(key=lambdae:e[1])#对第二个元素进行排序,相当于 mylist.sort(key=sort_by_second_element)print("排序后"':', end='')print(mylist2
fromoperatorimportitemgetterdefsort_tuples(sub_li):# itemgetter(1) returns a function that can be used to retrieve the# second element of a tuple (i.e., the element at index 1)# this function is used as the key for sorting the sublistsreturnsorted(sub_li,key=itemgetter(1))# Input li...
示例3:使用具有键功能的 sorted() 对列表进行排序 # take the second element for sortdeftake_second(elem):returnelem[1]# random listrandom = [(2,2), (3,4), (4,1), (1,3)]# sort list with key sorted_list = sorted(random, key=take_second) # print listprint('Sorted list:', sorted...
AI代码解释 >>>string_number_value='34521'>>>string_value='I like to sort'>>>sorted_string_number=sorted(string_number_value)>>>sorted_string=sorted(string_value)>>>sorted_string_number['1','2','3','4','5']>>>sorted_string[' ',' ',' ','I','e','i','k','l','o','o...
element = search[i] if element == target: print("I found it!") break i += 1 else: print("I didn't find it!") Similarly, can use break to quit a loop, or use continue to skip over certain code. sort by key lst = [[1, 2], [2, 3]] ...
As a method,.sort()works with the list instance itself. In other words, you don’t explicitly pass in an iterable as an argument. Have a look at the impacts of these differences in code: Python >>>tuple_val=(5,1,3,5)>>>tuple_val.sort()Traceback (most recent call last):...Att...
输入列表source_list中的元素按照首字母从小到大的顺序进行排序,并且输出排序后的列表。 本关涉及的代码文件src/step2/sortTest.py 的代码框架如下: #coding=-8 # 创建并初始化`source_list`列表 source_list = []while True: try list_element = input() sourcelist.append(listelement) except...
python实践题库及答案非选择题 python实践题库及答案非选择题 题目部分 1.在Python中，如何定义一个函数？请举例说明。2.解释Python中列表（list）和元组（tuple）的主要区别。3.编写一段Python代码，实现从用户输入获取一个整数，并判断它是否为偶数。4.简述Python中字典（dictionary）的概念和基本用法。5.如何在...
答案：C 解析：列表中的元素可以是不同类型，A错误；列表是可变数据类型，B错误；可以使用sorted函数对列表进行排序，D错误；可以通过索引访问列表中的元素，C正确。2.已知列表a = [1, 2, 3, 4, 5]，则a[2:]的值是（）A. [1, 2]B. [2, 3, 4, 5]C. [3, 4, 5]D. [1, 2, 3]答案：C...
You have seen that an element in a list can be any sort of object. That includes another list. A list can contain sublists, which in turn can contain sublists themselves, and so on to arbitrary depth.Consider this (admittedly contrived) example:...