Puas yog txoj hlua iterable hauv python?

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Puas yog txoj hlua iterable hauv python?
Puas yog txoj hlua iterable hauv python?

Video: Puas yog txoj hlua iterable hauv python?

Video: Puas yog txoj hlua iterable hauv python?
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Definition: Ib qho iterable yog ib yam khoom Python muaj peev xwm xa rov qab nws cov tswv cuab ib zaug, tso cai rau nws rov hais dua nyob rau hauv ib lub voj voog. Cov piv txwv paub ntawm iterables muaj xws li cov npe, tuples, thiab cov hlua - ib qho kab ke no tuaj yeem rov ua dua hauv ib lub voj voog.

Ib txoj hlua puas tuaj yeem ua tau?

Ib txoj hlua yog qhov hloov tsis tau ntawm cov bytes. Txoj hlua yog iterable; iteration hla ib txoj hlua yields txhua ntawm nws 1-byte substrings nyob rau hauv kev txiav txim.

Vim li cas txoj hlua iterable hauv Python?

Cov npe thiab kab npe yog iterables vim peb muaj peev xwm hla lawv (siv rau-voj qhov no). Hauv tsab xov xwm no, peb yuav pom yuav ua li cas txhawm rau txheeb xyuas yog tias ib qho khoom puas tuaj yeem ua tau hauv Python.

hom twg tuaj yeem ua tau hauv Python?

Piv txwv ntawm iterables suav nrog txhua hom kab ke (xws li npe, str, thiab tuple) thiab qee yam tsis sib xws xws li dict, cov khoom siv, thiab cov khoom ntawm txhua chav kawm koj txhais nrog _iter_ txoj kev los yog nrog _getitem_ txoj kev uas siv Sequence semantics.

Puas yog hlua ib qho iterator hauv Python?

Python muaj ntau yam khoom tsim hauv, uas siv cov txheej txheem iterator. … Hauv Python ib txoj hlua yog ib qho kev hloov tsis tau ntawm cov cim. Iter muaj nuj nqi rov qab ib qho iterator ntawm cov khoom. Peb kuj tuaj yeem siv cov npe lossis tuple ua haujlwm ntawm iterators.

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