Cov txheej txheem:
- Asynchronous yog qhov zoo tshaj plaws thaum ua cov lus thov hauv qab no:
- Vim li cas peb thiaj xav tau asynchronous programming?
- Qhov twg yog qhov laj thawj zoo tshaj los siv kev ua asynchronous?
- Thaum twg koj yuav siv asynchronous ua?
- Yam khoom twg hauv qab no siv asynchronous programming?
Video: Qhov twg siv asynchronous programming?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Asynchronous yog qhov zoo tshaj plaws thaum ua cov lus thov hauv qab no:
- I/O bound thov. Piv txwv li: sau ntawv / nyeem ntawv rau cov ntaub ntawv lossis cov ntaub ntawv, ua API hu, hu rau kho vajtse xws li tshuab luam ntawv thiab lwm yam.
- CPU bound thov (yuav tsum tau CPU sij hawm).
Vim li cas peb thiaj xav tau asynchronous programming?
Asynchronous coding feem ntau txhais tau tias koj yuav tsum tau ntau cov xov koj tus lejQhov no txhais tau tias koj yuav tsum pib lwm txoj xov uas tuaj yeem khiav ntawm koj tus kheej ntawm koj txoj haujlwm tseem ceeb. Qhov no feem ntau tsim nyog vim tias, piv txwv li, tos kev sib txuas lus kom ua tiav tag nrho cov xov uas tos tsis tau khiav.
Qhov twg yog qhov laj thawj zoo tshaj los siv kev ua asynchronous?
Asynchronous loops yog qhov tsim nyog thaum muaj ntau qhov kev cuam tshuam los yog thaum cov haujlwm hauv lub voj voog nyuajTab sis rau cov haujlwm yooj yim xws li iterating los ntawm ib qho me me, muaj tsis muaj laj thawj los cuam tshuam ntau yam los ntawm kev siv lub luag haujlwm recursive complex.
Thaum twg koj yuav siv asynchronous ua?
Asynchronous ua yog qhov zoo tshaj plaws thaum koj txoj kev yog I / O, network-bound, los yog ntev-khiav thiab parallelizable. Lwm qhov txiaj ntsig ntawm qhov kev txiav txim asynchronous yog tias nws tuaj yeem raug tshem tawm yooj yim dua los ntawm tus neeg siv dua li qhov kev thov synchronous.
Yam khoom twg hauv qab no siv asynchronous programming?
Ib qho ntawm APIs yooj yim tshaj plaws uas Dart muaj rau asynchronous programming yog futures - khoom ntawm hom Yav Tom Ntej. Rau feem ntau, Dart lub neej yav tom ntej zoo ib yam li yav tom ntej lossis cog lus APIs pom hauv lwm hom lus. Kab lus no tham txog cov ntsiab lus tom qab Dart yav tom ntej thiab qhia koj yuav ua li cas siv Future API.
Pom zoo:
Dab tsi yog qhov programming tsim?
Cov kev pab cuam yog tsim los siv cov tsev sib xyaw ua ke. Cov tsev thaiv no, hu ua programming constructs (los yog programming concepts), form hauv paus rau tag nrho cov kev pab cuam… iteration yog qhov rov ua tiav ntawm ntu ntawm cov lej thaum qhov kev pab cuam tab tom ua haujlwm .
Qhov twg yog qhov mob thiab qhov twg yog qhov ceeb?
Panic (lub suab los ntawm Matt Frewer) yog lub ntsej muag ntsuab-xiav nrog lub cev ntev. Thaum nws yog me ntsis cunning dua Pain, nws paranoia txhais tau hais tias nws yog heev ceev faj thiab ntau cynical nyob rau hauv lub sij hawm, yog li nws tej zaum yuav ntse dua ib tug ntawm ob.
Qhov twg yog qhov siv rau qhov luam tawm lossis tsis tau tshaj tawm?
A citation yog ib qho ntaub ntawv siv rau ib qho kev luam tawm lossis tsis tau tshaj tawm qhov chaw uas koj tau sab laj thiab tau txais cov ntaub ntawv los ntawm thaum sau koj cov ntawv tshawb fawb . Yuav ua li cas hais txog qhov tsis tau tshaj tawm?
Qhov kev txiav txim siab siv tau siv qhov twg?
Kev txiav txim siab thiab kev txiav txim siab tuaj yeem ua tau zoo heev rau cov koom haum thiab tseem muaj txiaj ntsig rau cov tib neeg hauv ntau txoj haujlwm, suav nrog kev noj qab haus huv, kev kawm, kev pabcuam nyiaj txiag thiab kev lag luam .
Thaum twg asynchronous pacemaker siv?
asynchronous pacemaker ib qho kev cog lus pacemaker uas xa stimuli ntawm tus nqi taag, ywj siab ntawm ib qho kev ua atrial lossis ventricular; Hom no tam sim no tsis tshua siv tshwj tsis yog pib lossis txiav qee qhov tachycardias . Vim li cas koj thiaj siv asynchronous pacing?
