To delete the last element from the list we can just use the negative index,e.g-2and it will remove the last 2 elements from the list without knowing the length of the list. my_list = ['a','b','c','d','e']delmy_list[-2:]print(my_list)#output: ['a', 'b', 'c'] Not...
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. $ ./main.py ['cup', 'new', 'war', 'wrong', 'crypto', 'forest', 'water'] [4, 5, 6, 7, 8, 9, 10] ...
pythonCopycodemy_list=[ 1,2,3,4,5]removed_element=my_list.pop(2)# 删除索引为2的元素,即3print(removed_element)# 输出: 3print(my_list)# 输出: [1, 2, 4, 5]last_element=my_list.pop()# 删除最后一个元素,即5print(last_element)# 输出: 5print(my_list)# 输出: [1, 2, 4] 使...
Remove List Element by Index 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 origin...
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...
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 the element with the value 5 from the listmy_list.remove(5) We can also use thepop()function. # Removes the last element from the listlast_element=my_list.pop() We can also use thedelkeyword. In each of the above cases, the new list will be[1, 2, 3, 4]after the ...
print('Length of the list is:',length) 执行和输出: 4. 添加元素 向Python 列表添加元素使用列表对象的 append() 函数。使用 append() 函数的语法如下: mylist.append(new_element) new_element 是要追加到列表 mylist 中的新元素。 4.1. 示例:添加新元素到列表 ...
用del list[m] 语句,删除指定索引m处的元素。 用remove()方法,删除指定值的元素(第一个匹配项)。 用pop()方法,取出并删除列表末尾的单个元素。 用pop(m)方法,取出并删除索引值为m的元素。 用clear()方法,清空列表的元素。(杯子还在,水倒空了)
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...