Methods python list (change the original list)

1. xxx.append () added to the end of an element
   
   renderings:
   

   Code:

   # The append () added to the end element 
   my_list = [ ' . 1 ' , ' 2 ' , ' . 3 ' , ' . 4 ' ]
    Print ( ' original list: ' , my_list) 
   my_list.append ( ' Five ' )
    Print ( ' now listing : ' , my_list)

    

2. xxx.insert () to insert elements into the specified position
   renderings:
   

   Code:

   # INSERT () to insert elements into the specified position 
   my_list = [ ' . 1 ' , ' 2 ' , ' . 3 ' , ' . 4 ' ]
    Print ( ' before the specified insertion ' , my_list) 
   my_list.insert ( . 1, ' ha ' )
    Print ( ' specified after insertion ' , my_list)

    

3. xxx.extend () to add a plurality of end
   renderings:
   

   Code:

   # Extend () to add a plurality of end 
   my_list = [ ' . 1 ' , ' 2 ' , ' . 3 ' , ' . 4 ' ]
    Print (my_list)
    # my_list.extend ([ 'fuel', 'ha']) feels more code below less 
   my_list + = [ ' fuel ' , ' ha ' ]
    Print (my_list)

    

4. xxx.clear () Clear sequence
   renderings:
   

   Code:

   # Clear () Clear sequence 
   my_list = [ ' . 1 ' , ' 2 ' , ' . 3 ' , ' . 4 ' ]
    Print ( ' before emptying sequence: ' , my_list) 
   my_list.clear () 
   Print ( ' after emptying sequence: ' , my_list)

    

5. xxx.pop () remove elements
   renderings:
   

   Code:

   # POP () remove and return the removed element based on the index 
   my_list = [ ' . 1 ' , ' 2 ' , ' . 3 ' , ' . 4 ' ]
    Print ( ' before the element deletion: ' , my_list) 
   deleted_elements = my_list.pop ( . 1 )
    Print ( ' after the element deletion: ' , my_list)
    Print ( ' elements deleted: ' , deleted_elements)

    

6. xxx.remove () to delete the specified elements, if a plurality of the same elements, remove the first
   renderings:
   

   Code:

   # Remove () Removes the specified elements, if there are a plurality of the same elements, remove the first 
   my_list = [ ' . 1 ' , ' 2 ' , ' . 3 ' , ' . 4 ' , ' 2 ' ]
    Print ( ' element deletion of : before ' , my_list) 
   my_list.remove ( ' 2 ' )
    Print ( ' after the element deletion: ' , my_list)

    

7. xxx.reverse ()   inverted list
   renderings:
   

   Code:

   # Reverse () inverted list 
   my_list = [ ' . 1 ' , ' 2 ' , ' . 3 ' , ' . 4 ' , ' . 5 ' ]
    Print ( ' pre inverted list: ' , my_list) 
   my_list.reverse () 
   Print ( ' after reversing the list: ' , my_list)

    

8. xxx.sort () List Sort
   renderings:
   

   Code:

   # Sort () list is sorted by default ascending 
   # if desired in descending order, the need to pass a reverse = True as a parameter 
   my_list = [ ' . 1 ' , ' . 4 ' , ' . 3 ' , ' 2 ' , ' . 5 ' ]
    Print ( ' before ordering: ' , my_list) 
   my_list.sort () 
   Print ( ' after ascending: ' , my_list) 
   my_list.sort (Reverse = True)
    Print ( ' after descending: ' , my_list)