Puas yog nws ua tau hauv python?
Puas yog nws ua tau hauv python?

Video: Puas yog nws ua tau hauv python?

Video: Puas yog nws ua tau hauv python?
Video: Google Colab - Searching for News with Python! 2024, Kaum ib hlis
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Definition: Ib ua tau yog ib qho Python cov khoom muaj peev xwm rov qab tau nws cov tswv cuab ib zaug ib zaug, tso cai rau nws rov ua dua nyob rau hauv ib lub voj voog. Paub piv txwv ntawm iterables suav nrog cov npe, tuples, thiab cov hlua - txhua qhov sib lawv li no tuaj yeem rov ua dua hauv ib lub voj voog.

Hauv qhov no, yog daim ntawv teev npe iteable hauv python?

Ib yam khoom hu ua ua tau yog tias peb tuaj yeem tau txais ib qho iterator los ntawm nws. Feem ntau ntawm built-in ntim hauv Python zoo li: lis , tuple, hlua thiab lwm yam iterables.

Tsis tas li ntawd, puas yog tuple iterable hauv python? Tuples yog ua tau , raws nraim tib yam li cov npe. Txij li thaum a tuple yog ua tau , daim ntawv hloov pauv tau yooj yim tsim siv cov npe () builtin.

Yog li ntawd, dab tsi cov ntaub ntawv hom yog iterable nyob rau hauv python?

Piv txwv ntawm iterables suav tag nrho cov kab ke hom (xws li daim ntawv teev npe, str, thiab tuple) thiab qee qhov tsis sib xws hom zoo li dict, cov ntaub ntawv cov khoom, thiab cov khoom ntawm txhua chav kawm koj txhais nrog _iter_() txoj kev lossis nrog _getitem_() txoj kev uas siv Sequence semantics.

Puas yog phau ntawv txhais lus siv tau Python?

A phau ntawv txhais lus los ntawm nws tus kheej yog ib qho ua tau ntawm nws cov yawm sij. Ntxiv mus, peb tuaj yeem iterate los ntawm phau ntawv txhais lus hauv 3 txoj kev sib txawv: lus hais . values() - qhov no rov qab ib ua tau ntawm phau ntawv txhais lus tus nqi.

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