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...
def difference_by(a, b, fn): b = set(map(fn, b)) return [item for item in a if fn(item) not in b] from math import floor difference_by([2.1, 1.2], [2.3, 3.4],floor) # [1.2] difference_by([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], lambda v : v['x'])...
1. 获取两个list 的交集 print list(set(a).intersection(set(b))) 2. 获取两个list 的并集 print list(set(a).union(set(b))) 3. 获取两个 list 的差集 print list(set(b).difference(set(a))) # b中有而a中没有的 2.python Set交集、并集、差集 s = set([3,5,9,10,20,40])#创建一...
(listB).difference(set(listA))) print "retD is: ",retD retE = [i for i in listB if i not in listA] print "retE is: ",retE def main(): listA = [1,2,3,4,5] listB = [3,4,5,6,7] diff(listA,listB) if __name__ == '__main__': main() 1 2 3 4 5 6 7 8...
#方法一: tmp = [val for val in b if val not in a] # b中有而a中没有的 print(tmp) #方法二 比方法一快很多! print list(set(b).difference(set(a))) # b中有而a中没有的 非常高效! python Set交集、并集、差集 代码语言:javascript 代码运行次数:0 运行 AI代码解释 s = set([3,5,9...
That also means that you can't delete an element or sort atuple. However, you could add new element to both list and tuple with the onlydifference that you will change id of the tuple by adding element(tuple是不可更改的数据类型,这也意味着你不能去删除tuple中的元素或者是对tuple进行排序,...
因为set 是一个无序不重复元素集,因此,两个 set 可以做数学意义上的 union(并集), intersection(交集), difference(差集) 等操作。 例子: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 set1=set('hello') set2=set(['p','y','y','h','o','n']) print(set1) print(set2) # 交集 (求...
5. What is the difference between split() and list() in Python? split() divides a string by a delimiter, while list() converts each string character into a separate list element. For example: # Using split() string = "apple,banana,cherry" list_of_fruits = string.split(",") print(...
for item in lst: 循环 for i in range(len(lst)): i lst[i] 七. 基础数据类型tuple 元组: 俗称不可变的列表.又被成为只读列表, 元组也是python的基本数据类型之一, 用小括号括起来, 里面可以放任何数据类型的数据, 查询可以. 循环也可以. 切片也可以. 但就是不能改. ...
Write a Python program to convert a given list of integers and a tuple of integers into a list of strings. Sample Solution: Python Code : # Create a list named 'nums_list' and a tuple named 'nums_tuple' with integer elementsnums_list=[1,2,3,4]nums_tuple=(0,1,2,3)# Print the...