Here, we have first got the length of the list usinglen(my_list), and then usinglist_len - n, we have minus the number of elements we want to remove from the end of the list Next, we removed the last 2 elements from the list usingmy_list[:end_index]. Remove last n elements fr...
In the program, we delete elemetns with del. del words[0] del words[-1] We delete the first and the last element of the list. vals = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] del vals[0:4] Here, we delete a range of integers. ...
最简单粗暴的获取方法some_list[-n] some_list[-n]可以获取列表倒数第n个元素。some_list[-1]获取最后一个元素,some_list[-2]获取倒数第二个,一直到some_list[-len(some_list)],这个给你提供了第一个元素 >>> some_list = [1, 2, 3] >>> some_list[-1] = 5 # Set the last element >>> ...
newList.append() * 列表中插入元素 newList.insert(index, 'dfasfdsaf') 3、删除元素 * 删除任意位置索引为index的元素 del newList[index] * 弹出列表末尾元素 lastElement = newList.pop() * 弹出列表索引为index的元素 popedElement = newList.pop(index) * 根据值删除元素 newList.remove('sdfsafdsa'...
Method-2: Remove the first element of the Python list using the pop() method Thepop()method is another way to remove an element from a list in Python. By default,pop()removes and returns the last element from the list. However, we can also specify the index of the element to be re...
("\nAfter deleting an element, using the 'pop' function:")# Use the 'pop' function to remove the last element from the 'student' list, and assign the removed value to 'z'.z=student.pop()# Print the updated 'student' list after removing the last element.print(student)# Print the ...
Insert an item at a given position. The first argument is the index of the element before which to insert, soa.insert(0,x)inserts at the front of the list, anda.insert(len(a),x)is equivalent toa.append(x). list.remove(x) 删除list的第一个x数据 ...
· remove()函数根据元素的值来删除元素。· clear()函数清空列表。#Deleting elements from the listfruits = ['Apple', 'Guava', 'Banana','Orange', 'Kiwi']#del() function del fruits[3] #delete element at index 4 print(fruits)Output:['Apple', 'Guava', 'Banana', 'Kiwi']#pop()fun...
list.insert(i, x)Insert an item at a given position. The first argument is the index of the element before which to insert, so a.insert(0, x) inserts at the front of the list, and a.insert(len(a), x) is equivalent to a.append(x).本方法是在指定的位置插入一个对象，第一个参数...
Python中element函数,目录下载安装Seleniumselenium元素定位控制浏览器操作控制浏览器窗口大小控制浏览器前进后退刷新页面WebDriver常用方法点击和输入提交其他方法鼠标事件键盘事件获取断言信息设置元素等待显式等待隐式等待定位一组元素多表单切换多窗口切换警告框下拉列