Video: Dab tsi yog qhov txawv ntawm kev thov synchronous thiab asynchronous thov?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Synchronous : A synchronous thov thaiv tus neeg siv khoom kom txog thaum ua tiav. Asynchronous Ib thov asynchronous tsis thaiv tus neeg siv khoom xws li browser yog teb. Lub sijhawm ntawd, tus neeg siv tuaj yeem ua lwm yam haujlwm. Hauv qhov xwm txheej zoo li no, javascript cav ntawm browser tsis raug thaiv.
Kuj paub yog, qhov txawv ntawm synchronous thiab asynchronous API yog dab tsi?
Kev piav qhia luv luv ntawm synchronous vs. asynchronous API hu. Synchronous : if ib API hu yog synchronous , nws txhais tau hais tias kev ua lej code yuav thaiv (lossis tos) rau qhov API hu rov qab ua ntej txuas ntxiv. Asynchronous : Asynchronous hu tsis thaiv (los yog tos) rau lub API hu rov qab los ntawm server.
Kuj Paub, qhov txawv ntawm synchronous thiab asynchronous serial kev sib txuas lus yog dab tsi? Cov txheej txheem rau xwm txheej Hloov cov ntaub ntawv tuaj yeem muab faib ua ob hom: synchronous thiab asynchronous . Rau synchronous hloov cov ntaub ntawv, ob tus neeg xa khoom thiab tus txais nkag tau cov ntaub ntawv raws li tib lub moos. Rau asynchronous hloov cov ntaub ntawv, tsis muaj lub teeb liab moos nruab nrab tus sender thiab receivers.
Kuj Paub, qhov txawv ntawm synchronous thiab asynchronous FIFO yog dab tsi?
FIFO tuaj yeem yog synchronous los yog asynchronous . Qhov yooj yim qhov sib txawv ntawm lawv yog tias tag nrho cov haujlwm ntawm synchronous FIFO yog tag nrho nyob ntawm lub moos qhov twg raws li kev sau ntawv thiab nyeem cov haujlwm ntawm asynchronous FIFO yog asynchronous rau ib leeg.
Ib qho piv txwv ntawm kev sib txuas lus asynchronous yog dab tsi?
Ib kev sib txuas lus asynchronous kev pabcuam lossis daim ntawv thov tsis tas yuav muaj tus nqi me ntsis. Piv txwv yog hloov ntaub ntawv, email thiab World Wide Web. Ib piv txwv ntawm qhov opposite, ib tug synchronous kev sib txuas lus service, yog realtime streaming media, rau piv txwv IP xov tooj, IP-TV thiab video conferencing.
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