在Python中,集合操作速度快,且去重能力强,非常适合这个用途。 # 将列表转换为集合set_a=set(list_a)set_b=set(list_b)# 计算列表差异difference_a=set_a-set_b# 从list_a中找出不在list_b中的元素difference_b=set_b-set_a# 从list_b中找出不在list_a中的元素# 输出结果print("Items in List A b...
Python Code:# Define a function 'list_difference' that finds the difference between two lists (including duplicate elements) def list_difference(l1, l2): # Create a copy of 'l1' to avoid modifying the original list result = list(l1) # Iterate through elements in 'l2' for el in l2: #...
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获得两个list的并集 #Union of two list (Get all the elements) list(set(list1) | set(list2)) 获得两个list的交集 #Intersection of two list (Get the elements that both have) list(set(list1) & set(list2)) 获得后者相对于前者的补集 #Difference of two list (Get the elements that the ...
Another difference between strings and lists is that strings are immutable, whereas lists are mutable. 除了这两个区别之外,字符串和列表当然也有自己的方法。 In addition to these two differences, strings and lists, of course,come with their own methods. 通常情况下,列表只包含一种类型的对象,尽管这...
list2= ["one","three","two","four"] set(list1).symmetric_difference(set(list2)) 2.4 获取一个列表中不是另一个列表成员的成员(差集) list1 = ["one","two","three","five"] list2= ["one","three","two","four"] set(list1).difference(set(list2)) ...
items() if v % 2 ==0} print(dd) {'one': 1, 'two': 2, 'three': 3} {'two': 2} # 字典相关函数 字典相关函数¶ In [73]: d = {"one":1,"two":2,"three":3} x # 通用函数:len, max, min, dict # *str (字典):返回字典的字符串格式 d = {"one":1,"two":2,"...
The intersection, union, difference, and symmetric difference of two lists; The sorting method of the list. 1. Delete an element in the list To delete an element in the list, you can usedelandremove. del is to delete elements according to subscripts, and remove is to delete elements accord...
1、什么是 List (列表) List (列表)是 Python 内置的一种数据类型。是一种有序的集合,可以随时添加和删除其中的元素。 那为什么要有 List (列表)呢? 我们用一个例子来说明。 现在有一个团队要出去玩,要先报名。如果用我们之前学过的知识,那么就是用一个字符串变量把他们都记录起来。
set无序排序且不重复,是可变的,有add(),remove()等方法。既然是可变的,所以它不存在哈希值。基本功能包括关系测试和消除重复元素. 集合对象还支持union(联合), intersection(交集), difference(差集)和sysmmetric difference(对称差集)等数学运算. frozenset() ...