Video: Dab tsi yog qhov tseem ceeb ntawm daim ntawv thov web?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cheebtsam ntawm web -raws li daim ntawv thov . Tag nrho web -based database daim ntawv thov muaj peb yam tseem ceeb : A web browser (los yog tus neeg siv), a web thov server, thiab database server. Web -based database daim ntawv thov cia siab rau lub database server, uas muab cov ntaub ntawv rau cov daim ntawv thov.
Raws li txoj cai, cov khoom ntawm lub Web server yog dab tsi?
Ib yam web server niaj hnub no muaj plaub yam ntxiv rau lub cev kho vajtse. Cov no yog lub operating system, web server , database thiab scripting language.
Tsis tas li ntawd, ntau hom kev siv Web yog dab tsi? Nov yog tsib yam sib txawv ntawm lub vev xaib apps, nrog rau txhua tus ntawm lawv tus yam ntxwv.
- Daim ntawv thov web zoo li qub.
- Dynamic web application.
- E-lag luam.
- Portal web app.
- Content Management System (CMS)
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog daim ntawv thov tivthaiv?
Android - Daim ntawv thov Cheebtsam . Kev tshaj tawm. Daim ntawv thov Cheebtsam yog qhov tseem ceeb ntawm lub tsev blocks Daim ntawv thov Android . Cov no cov khoom yog loosely coupled los ntawm daim ntawv thov Manifest cov ntaub ntawv AndroidManifest. xml uas piav txog txhua qhov tiv thaiv ntawm daim ntawv thov thiab lawv cuam tshuam li cas.
Dab tsi yog qhov architecture ntawm lub vev xaib thov?
Web Application Architecture yog lub moj khaum uas muaj kev sib raug zoo thiab kev sib cuam tshuam ntawm daim ntawv thov Cheebtsam, xws li middleware systems, user interfaces, thiab databases.
Pom zoo:
Qhov txawv ntawm qhov kev thov thiab kev thov yog dab tsi?
Raws li lub npe qhov txawv ntawm qhov kev thov andrequests yog qhov kev thov yog ua ntawm (l) whilerequests yog
Dab tsi yog qhov txawv ntawm daim ntawv thov web thiab desktop?
Cov ntawv thov desktop tau nruab rau ntawm tus neeg ua haujlwm lub computer desktop. Cov ntawv thov web tuaj yeem nkag mus hauv Is Taws Nem (lossis los ntawm anIntranet).Thaum ob hom kev siv yog software-based, muaj qhov sib txawv nruab nrab ntawm desktop thiab webapplications
Dab tsi yog qhov txawv ntawm daim ntawv pov thawj tus kheej thiab daim ntawv pov thawj CA?
Qhov kev ua haujlwm tseem ceeb ntawm daim ntawv pov thawj tus kheej kos npe thiab daim ntawv pov thawj CA yog tias nrog tus kheej kos npe, tus browser feem ntau yuav muab qee yam yuam kev, ceeb toom tias daim ntawv pov thawj tsis tau muab los ntawm CA. Ib qho piv txwv ntawm qhov yuam kev daim ntawv pov thawj tus kheej tau pom nyob rau hauv lub screenshot saum toj no
Peb puas tuaj yeem ntxig ntau qhov NULL qhov tseem ceeb hauv qhov tseem ceeb Oracle?
Ntawd yog: Thaum (1, 1, null) raug tso cai, tab sis tsis pub ntau tshaj ib zaug, kab uas muaj qhov tseem ceeb (null, null, null) hauv peb kab uas ua rau tus yuam sij tshwj xeeb raug tso cai txhua lub sijhawm - ib yam li nyob rau hauv ib kab ke
Dab tsi yog qhov txawv ntawm ob daim ntawv txuas thiab daim ntawv txuas txuas?
Ib daim ntawv txuas txuas txuas yog ib qho uas tsis muaj qhov pib lossis qhov kawg, tab sis lawv ua raws li cov qauv. Ib daim ntawv txuas ob npaug yog ib qho uas txhua qhov nodepoints tsis yog rau ntawm lub tom ntej node tab sis kuj mus rau yav dhau los