Seznam metod v Pythonu | Set 2 (del, remove(), sort(), insert(), pop(), extend()...)

Nekatere metode seznama so omenjene v nizu 1 spodaj

Več metod je obravnavanih v tem članku.

1. od [a : b]

:- Ta metoda

izbriše vse elemente v obsegu

začenši od indeksa 'a' do 'b', omenjenega v argumentih.

2. pop()

:- Ta metoda

izbriše

element

na položaju

omenjeno v svojih argumentih.

Python
   # Python code to demonstrate the working of   # del and pop()   # initializing list    lis   =   [  2     1     3     5     4     3     8  ]   # using del to delete elements from pos. 2 to 5   # deletes 354   del   lis  [  2   :   5  ]   # displaying list after deleting    print   (  'List elements after deleting are : '    end  =  ''  )   for   i   in   range  (  0     len  (  lis  )):   print  (  lis  [  i  ]   end  =  ' '  )   print  (  '  r  '  )   # using pop() to delete element at pos 2   # deletes 3   lis  .  pop  (  2  )   # displaying list after popping    print   (  'List elements after popping are : '     end  =  ''  )   for   i   in   range  (  0     len  (  lis  )):   print  (  lis  [  i  ]   end  =  ' '  )   

Izhod:

 List elements after deleting are : 2 1 3 8    
List elements after popping are : 2 1 8


3. vstavi (a x)

:- Ta funkcija

vstavi element na položaj

omenjeno v svojih argumentih. Potrebuje 2 argumenta

položaj in element, ki ga je treba dodati na ustrezni položaj.

4. odstrani()

:- Ta funkcija se uporablja za

izbriši prvo pojavitev

števila, omenjenega v njegovih argumentih.

Python
   # Python code to demonstrate the working of   # insert() and remove()   # initializing list    lis   =   [  2     1     3     5     3     8  ]   # using insert() to insert 4 at 3rd pos   lis  .  insert  (  3     4  )   # displaying list after inserting   print  (  'List elements after inserting 4 are : '     end  =  ''  )   for   i   in   range  (  0     len  (  lis  )):   print  (  lis  [  i  ]   end  =  ' '  )   print  (  '  r  '  )   # using remove() to remove first occurrence of 3   # removes 3 at pos 2   lis  .  remove  (  3  )   # displaying list after removing    print   (  'List elements after removing are : '     end  =  ''  )   for   i   in   range  (  0     len  (  lis  )):   print  (  lis  [  i  ]   end  =  ' '  )   

Izhod:

 List elements after inserting 4 are : 2 1 3 4 5 3 8    
List elements after removing are : 2 1 4 5 3 8


5. razvrsti()

:- Ta funkcija

vrste

seznam v

naraščajoči vrstni red

.

6. obratno ()

:- Ta funkcija

obrne

elementi seznama.

Python
   # Python code to demonstrate the working of   # sort() and reverse()   # initializing list    lis   =   [  2     1     3     5     3     8  ]   # using sort() to sort the list   lis  .  sort  ()   # displaying list after sorting   print   (  'List elements after sorting are : '     end  =  ''  )   for   i   in   range  (  0     len  (  lis  )):   print  (  lis  [  i  ]   end  =  ' '  )   print  (  '  r  '  )   # using reverse() to reverse the list   lis  .  reverse  ()   # displaying list after reversing   print   (  'List elements after reversing are : '     end  =  ''  )   for   i   in   range  (  0     len  (  lis  )):   print  (  lis  [  i  ]   end  =  ' '  )   

Izhod:

 List elements after sorting are : 1 2 3 3 5 8    
List elements after reversing are : 8 5 3 3 2 1


7. razširi (b)

:- Ta funkcija se uporablja za

razširite seznam z

elementi, ki so prisotni v

drug seznam

. Ta funkcija traja

drugi seznam kot svoj argument

.

8. jasno()

:- Ta funkcija se uporablja za

izbrišite vse elemente

seznama. Po tej operaciji seznam postane prazen.

Python
   # Python code to demonstrate the working of   # extend() and clear()   # initializing list 1   lis1   =   [  2     1     3     5  ]   # initializing list 1   lis2   =   [  6     4     3  ]   # using extend() to add elements of lis2 in lis1   lis1  .  extend  (  lis2  )   # displaying list after sorting   print   (  'List elements after extending are : '     end  =  ''  )   for   i   in   range  (  0     len  (  lis1  )):   print  (  lis1  [  i  ]   end  =  ' '  )   print   (  '  r  '  )   # using clear() to delete all lis1 contents   lis1  .  clear  ()   # displaying list after clearing   print   (  'List elements after clearing are : '     end  =  ''  )   for   i   in   range  (  0     len  (  lis1  )):   print  (  lis1  [  i  ]   end  =  ' '  )   

Izhod:

 List elements after extending are : 2 1 3 5 6 4 3    
List elements after clearing are :