Video: Dab tsi yog kev siv suav hauv iOS?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hauv computer science, suav suav hais txog cov txheej txheem uas tso cai rau daim ntawv thov paub tias yam khoom twg tseem siv tau, vim tias txhua yam khoom raug muab khaws cia. suav ntawm instantiation.
Tsis tas li, dab tsi yog qhov kev siv tsis siv neeg suav hauv iOS?
Automatic Reference suav . Swift siv Automatic Reference suav ( ARC ) txhawm rau taug qab thiab tswj koj lub cim xeeb siv app. ARC yeej tso lub cim xeeb uas siv los ntawm chav kawm thaum cov piv txwv tsis xav tau lawm.
Ib yam li ntawd, dab tsi yog khaws cia suav hauv iOS? Khaws suav sawv cev tus naj npawb ntawm cov tswv rau ib yam khoom. Nws yog xoom txog qhov khoom tsis muaj tus tswv. Kev nce hauv ib qho kev thov tswv cuab yuav ua rau khaws suav nce los ntawm 1 thiab txo yuav ua rau nws txo los ntawm 1.
Lub voj voog siv yog dab tsi?
A siv lub voj voog tshwm sim thaum ib los yog ntau yam khoom siv sib tham. Siv cov voj voog tsuas tuaj yeem tshwm sim hauv cov khoom ntim khoom (piv txwv li, hauv cov khoom uas tuaj yeem muaj lwm yam khoom), xws li cov npe, phau ntawv txhais lus, chav kawm, tuples. Cov khib nyiab khib nyiab tsis taug qab txhua hom kev hloov tsis tau tsuas yog tuple.
ARC yog dab tsi hauv iOS Swift?
Swift - ARC Txheej txheem cej luam. Kev tshaj tawm. Lub cim xeeb tswj kev ua haujlwm thiab nws cov kev siv tau ua haujlwm hauv Swift 4 hom lus los ntawm Kev suav siv tsis siv neeg ( ARC ). ARC yog siv los pib thiab deinitialize cov peev txheej hauv qhov no yog qhov tso tawm qhov chaw nco siv los ntawm cov chav kawm thaum cov xwm txheej tsis xav tau ntxiv lawm.
Pom zoo:
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