使用remove()方法(不推荐用于删除最后一个元素) 虽然remove()方法通常用于删除特定值的元素,但理论上它也可以与索引结合使用来删除最后一个元素。然而,这种方法通常不是最佳选择,因为它需要先获取最后一个元素的值,然后再调用remove()方法,效率较低。 python my_list = [1, 2, 3, 4, 5] last_element = ...
Thedelfunction in python is used to delete objects. And since in python everything is an object so we can delete any list or part of the list with the help ofdelkeyword. To delete the last element from the list we can just use the negative index,e.g-2and it will remove the last ...
The pop function removes and returns the element at the given index. If the index is not explicitly defined, it defaults to the last. The function raises IndexError if list is empty or the index is out of range. main.py #!/usr/bin/python words = ["sky", "cup", "new", "war",...
last_element = my_list.pop()print(last_element)# 输出5print(my_list)# 输出[1, 2, 3, 4] 在上述示例代码中,我们首先创建了一个列表my_list,包含了数字1~5。接着,我们使用 pop() 方法删除列表中的最后一个元素,将返回值保存到变量last_element中,并输出last_element的值,结果为5。最后,我们输出my...
privateclassItrimplementsIterator<E>{int cursor;// index of next element to returnint lastRet=-1;// index of last element returned; -1 if no suchint expectedModCount=modCount;Itr(){}publicbooleanhasNext(){returncursor!=size;}@SuppressWarnings("unchecked")publicEnext(){checkForComodification(...
List+size() : int+isEmpty() : bool+add(element: T) : void+get(index: int) : T+set(index: int, element: T) : void+remove(index: int) : voidArrayList+ArrayList() 关系图 下图为 List 类与 ArrayList 类之间的关系图表示: erDiagram ...
*/@Testpublicvoidremove3(){List<String>list=newArrayList(initList);List<String>list2=newArrayList(initList);for(String element:list2){if(list.indexOf(element)!=list.lastIndexOf(element)){list.remove(list.lastIndexOf(element));}}System.out.println(list);} ...
# Deleting 'fish' elementanimals.remove('fish') # Updated animals Listprint('Updated animals list: ', animals) Run Code Output Traceback (most recent call last): File ".. .. ..", line 5, in <module> animal.remove('fish')
Write a Python program to remove an element from a given list. Sample Solution-1: Python Code: # Create a list 'student' containing mixed data types (strings and integers).student=['Ricky Rivera',98,'Math',90,'Science']# Print a message indicating the original list.print("Original list...
Python中没有数组。从形式上看,列表会将所有元素都放在一对中括号 [] 里面,相邻元素之间用逗号分隔。 具体格式: [element1,element2,element3...,elementn] element1~elementn表示列表中的元素,个数没有限制,只要是Python支持的数据类型就可以。 创建列表: 1...