The list after duplicate removal : [(-1, 0, 1), (1, 3, 4), (1, 2, 3)] 也可以利用 set() + map() + sorted() ✵ 示例代码: # Python3 code to demonstrate# removing duplicate sublist # using set() + map() + sorte...
Write a Python program to remove duplicate sublists from a list of lists. Go to: Python Data Type List Exercises Home ↩ Python Exercises Home ↩ Previous:Write a Python program to get a list, sorted in increasing order by the last element in each tuple from a given list of non-empt...
# Python3 code to demonstrate# removing duplicate sublist# using set() + map() + sorted() # initializing listtest_list = [[1, 0, -1], [-1, 0, 1], [-1, 0, 1],[1, 2, 3], [3, 4, 1]] # printing original listprint...
fromitertoolsimportchain#使用 itertools.chain() 函数element_to_check = 3lists= [[1, 2, 3], [4, 5, 6], [7, 8, 9]]ifany(element_to_checkinsublistforsublistinchain(*lists)):print(f"{element_to_check} 存在于列表中。")else:print(f"{element_to_check} 不存在于列表中。")13. 使用...
这在内存使用方面可能非常浪费。最终返回的列表只是在每一轮连接中创建的所有列表中最近创建的列表。使用列表推导式可确保您只创建和返回一个列表: >>> >>>def flatten_list(a_list): ...return[itemforsublistina_listforiteminsublist] ...>>> matrix =[ ... [1,2,3], ... [4,5,...
复制 >>> defflatten_list(a_list):... flat = []...forsublistina_list:... flat += sublist...returnflat...>>> matrix = [... [1,2,3],... [4,5,6],... [7,8,9],... ]>>>flatten_list(matrix)[1,2,3,4
Slice operator ([start:end]) allows to fetch sublist from the list. It works similar to string. 1 2 3 >>> list = [11,33,44,66,788,1] >>> list[0:5] # this will return list starting from index 0 to index 4 [11,33,44,66,788] 1 2 >>> list[:3] [11,33,44] ...
lst=[[1,2],[3,4],[5,6]]new_lst=[elementforsublistinlstforelementinsublist]print(new_lst) 这段代码中,定义了一个二维列表,其中包含了三个子列表(即嵌套的列表)。然后,使用一行代码创建了一个新的一维列表。具体来说,这行代码中使用了两层循环,并在内部使用了列表推导式的语法。在这里,外层for循环...
list1 = [1, 2, 3]list2 = [4, 5, 6]merged_list = [item for sublist in [list1, list2] for item in sublist]print(merged_list) # 输出: [1, 2, 3, 4, 5, 6]方法四：使用itertools.chain()itertools.chain()函数是Python标准库中itertools模块提供的一个函数，它可以将多个迭代器链接...
sublist=lst[start:end]thread=threading.Thread(target=process_list,args=(sublist,))threads.append(thread)thread.start()# 等待所有线程执行完毕forthreadinthreads:thread.join()if__name__=='__main__':main() 1. 2. 3. 4. 5. 6. 7.