All the ways to manipulate a list in Python

List:

names = ['a','b','c',' D ']

1, Append: Names.append ()

>>> names.append ('e')>>> names['A  'b'c'd ' ' e ']

2. Delete: Pop,remove,del

1) Pop ()

>>> names.pop ()'e'

If no subscript is specified, the last element is deleted by default

>>> Names.pop (2)'C'

When you specify subscript, the element corresponding to the subscript is deleted

2) Remove ()

>>> names.remove ('e')>>> names['A  'b'c'd ']

3) Del

>>> del names[4]>>> names['a' b ' ' C ' ' D ']

3. Find the Element location: index ()

>>> names.index ('C')2

4. Number of statistics elements: count ()

>>> names.append ('d')>>> names.count ('d ' )2

5. Inversion: Reverse ()

>>> names.reverse ()>>> names['d'C  'b'a']

6. Empty: Clear ()

>>> names.clear ()>>> names[]

7. Insert: Insert ()

>>> Names.insert (2,'devilf')>>> names[ ' a ' ' b ' ' Devilf ' ' C ' ' D ']

There are other ways to insert:

>>> names[3'LeBron'>>> names['a ' ' b ' ' Devilf ' ' LeBron ' ' D ']

8. Sort: Sort () sorted by ASCII code

>>> Names.insert (4,'&&')>>>names['a','b','D','Devilf','&&','LeBron']>>>Names.sort ()>>>names['&&','a','b','D','Devilf','LeBron']

9, stitching two list: Extend ()

>>>names.extend (place)>>>names['&&','a','b','D','Devilf','LeBron','Beijing','Shandong','USA']

10. Slicing the list

1) List all the elements

>>>names[::]['&&','a','b','D','Devilf','LeBron','Beijing','Shandong','USA']

2) List the last element, starting at the middle position, listing all the elements behind

>>> names[-1]'USA'

int (Len (names)/2)>>> names[a:]['devilf ' LeBron ' ' Beijing ' ' Shandong ' ' USA ']

11. Copy: Copy ()

>>>names.copy () ['&&','a','b','D','Devilf','LeBron','Beijing','Shandong','USA']

All the ways to manipulate a list in Python