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reach the elements in the list - ptah - Oct-03-2017 Greetings .. I just started learning phyton. but I did not solve a problem .. I created a new list .. this list is contains numbers .. How can I manipulate the numbers in the list ?? barkod_numarasi=input("barkod numarası girelim") kac_tekrar=input("kaç tekrar olsun") while True: if not barkod_numarasi: print("boş bırakılamaz") break elif len(barkod_numarasi) < 7 or len(barkod_numarasi) > 7: print("barkod numarası 7 'den küçük olamaz") break else: print("şimdi hesaplanıyor..") liste = [i for i in range(int(barkod_numarasi), int(barkod_numarasi) + int(kac_tekrar))] print(liste) breakand now i created a list.. great! but how can i the manipulate the numbers? for example: list =[1234567,1234568,1234569] exm . 1234567; 1*3+2+3*3+4+5*3+6+7*3 int(i[0])*3+int(i[1])+int(i[2])*3+int(i[3])+int(i[4])*3+int(i[5])+int(i[6])*3 i can't solve this. RE: reach the elements in the list - nilamo - Oct-03-2017 I'm guessing this is for python, as I'm not sure what phyton is. That said, you can manipulate a list's contents via the indices of the list's items: >>> items = list(range(10)) >>> items [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] >>> items[1] = "second element" >>> items [0, 'second element', 2, 3, 4, 5, 6, 7, 8, 9] RE: reach the elements in the list - ichabod801 - Oct-03-2017 if you want to get the digits of a number, there are two ways to do it. One is to convert to string, pull out the digit, and convert it back to integer: >>> x = 12345 >>> three = str(x)[2] >>> int(three) + 2 5The other way is to use the modulus operator (%) which returns the remainder after division, and integer division (//) >>> x = 12345 >>> y = x // 100 >>> y 123 >>> three = y % 10 >>> three + 2 5 RE: reach the elements in the list - ptah - Oct-04-2017 (Oct-03-2017, 03:54 PM)nilamo Wrote: I'm guessing this is for python, as I'm not sure what phyton is. That said, you can manipulate a list's contents via the indices of the list's items:yes my fault sory. *Python*..my native language is not english. i learn english at my 30 years old and sometimes I have trouble with spells.>>> items = list(range(10)) >>> items [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] >>> items[1] = "second element" >>> items [0, 'second element', 2, 3, 4, 5, 6, 7, 8, 9] thank you for your help but i think you didn't understand what my trouble is or i didn't explain my problem.. (Oct-03-2017, 04:19 PM)ichabod801 Wrote: if you want to get the digits of a number, there are two ways to do it. One is to convert to string, pull out the digit, and convert it back to integer:if you want to get the digits of a number hi thank you for your respond. yes i want to get the digits of a number..but i made what you said but i still can't solve the problem liste = [i for i in range(int(barkod_numarasi), int(barkod_numarasi) + int(kac_tekrar))] three = str(liste)[2] int(three) * 120 print(three) print(liste) 2 [1234567, 1234568]liste=[1234567,12345678,12345679] 1 2 3 4 5 6 7 int(i[0])*3+int(i[1])+int(i[2])*3+int(i[3])+int(i[4])*3+int(i[5])+int(i[6])*3 I can not process for every number in the list.what code should we add after this code.. [liste = [i for i in range(int(barkod_numarasi), int(barkod_numarasi) + int(kac_tekrar))] RE: reach the elements in the list - ichabod801 - Oct-04-2017 This: int(i[0])*3+int(i[1])+int(i[2])*3+int(i[3])+int(i[4])*3+int(i[5])+int(i[6])*3 will work with the string method I showed you for getting at the integers. i just needs to be a string before you do this. RE: reach the elements in the list - ptah - Oct-04-2017 (Oct-04-2017, 01:27 PM)ichabod801 Wrote: This: int(i[0])*3+int(i[1])+int(i[2])*3+int(i[3])+int(i[4])*3+int(i[5])+int(i[6])*3 will work with the string method I showed you for getting at the integers. i just needs to be a string before you do this.it doesn't work. liste = [i for i in range(int(barkod_numarasi), int(barkod_numarasi) + int(kac_tekrar))] three = str(liste[1])*3 print(int(three))And the result: barkod numarası girelim1234567 kaç tekrar olsun2 şimdi hesaplanıyor.. 123456812345681234568what the fuck. I just want to 1*3.. anyway i will search . thank you RE: reach the elements in the list - ichabod801 - Oct-04-2017 No, you convert the whole number to a string. Then you can access the individual digits with slices, like i[1]. You just need to convert those individual digits back to integers with int(). RE: reach the elements in the list - ptah - Oct-04-2017 (Oct-04-2017, 07:19 PM)ichabod801 Wrote: No, you convert the whole number to a string. Then you can access the individual digits with slices, like i[1]. You just need to convert those individual digits back to integers with int(). barkod_numarasi=input("barkod numarası girelim") kac_tekrar=input("kaç tekrar olsun") while True: if not barkod_numarasi: print("boş bırakılamaz") break elif len(barkod_numarasi) < 7 or len(barkod_numarasi) > 7: print("barkod numarası 7 'den küçük olamaz") break else: print("şimdi hesaplanıyor..") liste = [str(i) for i in range(int(barkod_numarasi), int(barkod_numarasi) + int(kac_tekrar))] for i in liste: print(int(i[6])) break barkod numarası girelim1234567 kaç tekrar olsun2 şimdi hesaplanıyor.. 7 8hey.. it's working..thank you so much. |