Viacrozmerna indexacia triedy – Python – Fórum – Programujte.com

ahoj,

mam triedu:

class Foo:

    ARR = [[c for c in range(8)] for r in range(8)]

To qqqqq :

class foo:

    def __init__(self):

        self._pole = [[1,3,5],[2,4,6],[7,9,11],[8,10,12]] 

    

    def __getitem__(self, keys):

        return self._pole[keys]



>>> prom = foo()

>>> prom[0][2]

5

>>> prom[1][2]

6

diky :)
aj tak mi to ale nedava velmi zmysel, totiz v kode

>>> class foo: 

    def __init__(self): 

        self._pole = [[1,3,5],[2,4,6],[7,9,11],[8,10,12]] 

     

    def __getitem__(self, keys):

        print keys

        return self._pole[keys]



>>> f = foo()

>>> f[0]

0

[1, 3, 5]

>>> f[0][2]

0

5

>>> 

Protože tam žádný druhý rozměr není. x[y][z] je <<x[y]>[z]>

co su znacky "<" a ">" ? nejak mi to nedochadza stale :/

To jsou závorky. Prostě x[y][z] je x[y] a z toho pak [z].
x.getitem(y).getitem(z)