Video: Dab tsi yog input thiab output nyob rau hauv angular?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Ua ntej tshaj plaws, lub tswv yim ntawm Input thiab Output yog los pauv cov ntaub ntawv ntawm cov khoom. Lawv yog cov txheej txheem xa / tau txais cov ntaub ntawv los ntawm ib feem mus rau lwm qhov. Tswv yim yog siv los txais cov ntaub ntawv nyob rau hauv whereas Tso zis yog siv los xa cov ntaub ntawv tawm. Tso zis xa cov ntaub ntawv tawm los ntawm nthuav tawm cov khoom tsim tawm, feem ntau yog EventEmitter cov khoom.
Dhau li ntawd, @input thiab @output hauv angular 2 yog dab tsi?
Los ntawm Arvind Rai, Kaum Ib Hlis 24, 2016. Cov nplooj ntawv no yuav taug kev angular 2 @ Input thiab @Output piv txwv. @ Tswv yim yog ib tug decorator kos ib nkag khoom thiab @ Tso zis yog ib tug decorator kos ib tso zis vaj tse. @ Tswv yim yog siv los txhais ib qho nkag cov cuab yeej kom ua tiav cov khoom ntiag tug khi.
Tsis tas li ntawd, dab tsi yog input decorator hauv angular? Tswv yim (@ Tswv yim ()) yog ib qho ntawm feem ntau siv decorators nyob rau hauv Angular apps. Nws yog siv los hla cov ntaub ntawv los ntawm niam txiv lossis tus tswv tsev rau cov menyuam. Qhov no kho kom zoo nkauj muaj kev sib raug zoo nrog DOM cov cuab yeej nyob rau hauv template uas tus me nyuam tivthaiv siv.
Tom qab ntawd, dab tsi yog cov tswv yim thiab cov khoom tsim tawm hauv angular 4?
@ Tswv yim txuas cov cuab yeej ntawm ib feem (uas feem ntau yog cov khoom siv me nyuam) nrog tus nqi uas tau muab los ntawm lwm qhov (niam txiv). Ntawm qhov tod tes, tus @ Tso zis decorator yog siv los txuas cov khoom vaj khoom tsev ntawm cov menyuam yaus thiab emit nws los ntawm qhov kev tshwm sim emitter.
Dab tsi yog qhov tso zis tivthaiv?
Lub visually loj Input thiab Cov khoom tsim tawm sawv cev rau kev pabcuam HTTP thov thiab teb. Koj yuav tsum tso koj cov kev pabcuam logic nyob nruab nrab ntawm ob cov khoom . Input thiab Tso zis yog ob qho tshwj xeeb cov khoom ntawm Data Service REST txoj haujlwm. Cov tswv yim tiv thaiv muab koj cov kwj ntawm cov ntaub ntawv nkag.
Pom zoo:
Yuav ua li cas yog ib tug txheej txheem nyob rau hauv lub operating system dab tsi yog ib tug xov nyob rau hauv lub operating system?
Ib tug txheej txheem, nyob rau hauv cov nqe lus yooj yim tshaj, yog ib tug executingprogram. Ib tug los yog ntau tshaj threads khiav nyob rau hauv cov ntsiab lus ntawm cov txheej txheem. Ib tug xov yog ib qho tseem ceeb chav tsev uas theoperating system faib lub sij hawm processor. Lub threadpool feem ntau yog siv los txo tus naj npawb ntawm cov ntaub ntawv thov thiab muab kev tswj hwm ntawm cov neeg ua haujlwm threads
Dab tsi yog input thiab output kwj?
Nyeem thiab sau cov ntaub ntawv. Raws li tau piav qhia ua ntej, cov kwj tuaj yeem txhais tau tias yog ib ntu ntawm cov ntaub ntawv. InputStream yog siv los nyeem cov ntaub ntawv los ntawm ib qhov chaw thiab OutputStream yog siv los sau cov ntaub ntawv mus rau qhov chaw. Ntawm no yog hierarchy ntawm cov chav kawm los cuam tshuam nrog Input thiab Output kwj
Qhov chaw nyob ntawm lub cev thiab qhov chaw nyob qhov chaw nyob yog dab tsi?
Qhov sib txawv yooj yim ntawm Logical thiab lub cev chaw nyob yog qhov chaw nyob Logical yog tsim los ntawm CPU hauv kev xav ntawm ib qho kev pab cuam. Ntawm qhov tod tes, qhov chaw nyob ntawm lub cev yog qhov chaw nyob uas muaj nyob hauv lub cim xeeb. Cov txheej txheem ntawm txhua qhov chaw nyob uas tsim los ntawm CPU fora program hu ua Logical Address Space
Input thiab output angular 4 yog dab tsi?
Ua ntej tshaj plaws, lub tswv yim ntawm Input thiab Output yog sib pauv cov ntaub ntawv ntawm cov khoom. Lawv yog cov txheej txheem xa / tau txais cov ntaub ntawv los ntawm ib feem mus rau lwm qhov. Input yog siv los txais cov ntaub ntawv nyob rau hauv where Output yog siv los xa cov ntaub ntawv tawm. Cov zis xa tawm cov ntaub ntawv tawm los ntawm nthuav tawm cov khoom tsim tawm, feem ntau yog EventEmitter cov khoom
Dab tsi yog qhov input thiab output hauv lej?
Nyob rau hauv lej, input thiab outputare cov nqe lus uas muaj feem xyuam rau cov dej num. Ob lub tswv yim thiab tawm ntawm ib qho kev ua haujlwm yog qhov sib txawv, uas txhais tau hais tias lawv hloov. Ib qho piv txwv yooj yim yog y = x2 (uas koj tuaj yeem sau f(x) = x2). Nyob rau hauv tas li ntawd, x yog inputand y yog cov zis