Video: XML schemas yog hom lus dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
XML Schemas yog extensible, vim lawv sau hauv XML.
Ib yam li ntawd, nws raug nug, XML sau hom lus dab tsi?
Extensible Markup Language (XML ) yog a lus markup uas txhais cov txheej txheem rau encoding cov ntaub ntawv nyob rau hauv ib hom ntawv uas yog tib neeg-nyeem tau thiab tshuab-nyeem tau.
XML.
| Filename extension | .xml |
|---|---|
| UAS conformation | public.text |
| Tsim los ntawm | World Wide Web Consortium |
| Hom hom ntawv | Markup lus |
| Txuas ntxiv los ntawm | SGML |
XML schema nrog piv txwv yog dab tsi? XML schema yog ib hom lus uas siv los qhia txog kev txwv XML cov ntaub ntawv. Muaj ntau ntau schema cov lus uas tau siv tam sim no ib hnub rau piv txwv Relax- NG thiab XSD ( XML schema txhais). Nws zoo li DTD tab sis muab kev tswj xyuas ntau dua XML qauv.
Ib yam li ntawd, koj tuaj yeem nug, XML schemas yog dab tsi?
XML Schema feem ntau hu ua XML Schema Lus txhais ( XSD ). Nws yog siv los piav qhia thiab siv tau cov qauv thiab cov ntsiab lus ntawm XML cov ntaub ntawv. XML schema txhais cov ntsiab lus, yam ntxwv thiab cov ntaub ntawv hom. Schema element txhawb Namespaces. Nws zoo ib yam li database schema uas piav txog cov ntaub ntawv nyob rau hauv ib tug database.
Yuav tsim ib qho XML schema li cas?
Rau tsim ib XML schema Ntawm cov ntawv qhia zaub mov bar, xaiv XML > Tsim Schema . Ib XML Schema ntaub ntawv yog tsim thiab qhib rau txhua qhov chaw nyob hauv lub npe XML ntaub ntawv. Txhua schema yog qhib raws li ib ntus lwm yam ntaub ntawv. Cov schemas tau khaws cia rau disk, ntxiv rau koj qhov project, lossis muab pov tseg.
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