Popis metoda u Pythonu | Skup 2 (del, remove(), sort(), insert(), pop(), extend()...)
Neke od metoda popisa navedene su u skupu 1 u nastavku
U ovom se članku raspravlja o više metoda.
1. od [a : b]
:- Ova metoda
briše sve elemente u rasponu
počevši od indeksa 'a' do 'b' spomenutog u argumentima.
2. pop()
:- Ova metoda
briše
element
na poziciji
spominje u svojim argumentima.
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 = ' ' )
Izlaz:
List elements after deleting are : 2 1 3 8
List elements after popping are : 2 1 8
3. umetni (a x)
:- Ova funkcija
umeće element na poziciju
spominje u svojim argumentima. Potrebna su 2 argumenta
poziciju i element koji treba dodati na odgovarajuću poziciju.
4. ukloni()
:- Ova se funkcija koristi za
izbrisati prvo pojavljivanje
broja spomenutog u svojim argumentima.
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 = ' ' )Izlaz:
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. poredaj()
:- Ova funkcija
vrste
popis u
rastući poredak
.
6. obrnuti()
:- Ova funkcija
preokreće
elementi liste.
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 = ' ' )Izlaz:
List elements after sorting are : 1 2 3 3 5 8
List elements after reversing are : 8 5 3 3 2 1
7. proširiti (b)
:- Ova se funkcija koristi za
proširiti popis sa
elementi prisutni u
drugi popis
. Ova funkcija traje
drugi popis kao svoj argument
.
8. jasno()
:- Ova se funkcija koristi za
obrišite sve elemente
popisa. Nakon ove operacije popis postaje prazan.
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 = ' ' )Izlaz:
List elements after extending are : 2 1 3 5 6 4 3
List elements after clearing are :