Qhov Tseem Ceeb Qhov txawv - XML vs XSD
Qhov sib txawv tseem ceeb ntawm XML thiab XSD yog XML yog cov lus cim uas yog ib txoj hauv kev yooj yim ntawm kev tsim thiab sib koom cov ntaub ntawv ntawm cov tshuab tsis sib xws thaum XSD siv los txheeb xyuas cov qauv thiab cov ntsiab lus ntawm XML daim ntawv.
Ntau lub koom haum siv cov tshuab sib txawv. Ib qho kev sib tw yog los pauv cov ntaub ntawv ntawm cov tshuab tsis sib xws. XML yog software thiab kho vajtse ywj pheej txoj hauv kev khaws cov ntaub ntawv thiab hloov cov ntaub ntawv. XML stands rau Extensible Markup Language. XSD sawv rau XML Schema Definition. XSD muaj feem xyuam rau XML. Ib daim ntawv XML yog tsim tau zoo yog tias nws ua raws li qhov tseeb syntax. Nws yog qhov tsim tau zoo thiab siv tau yog tias daim ntawv raug lees paub tiv thaiv XSD. Kab lus no tham txog qhov txawv ntawm XML thiab XSD.
XML yog dab tsi?
XML stands for Extensible Markup Language. Raws li cov lus cim, nws pab tsim cov ntaub ntawv hauv ib hom ntawv uas tib neeg nyeem tau zoo li lub computer. Nws tau tsim los ntawm World Web Consortium (W3C). Tsis zoo li hauv HTML, hauv XML, tus programmer tuaj yeem txhais nws cov cim npe raws li daim ntawv thov, tab sis XML tsis yog hloov rau HTML. XML khaws cov ntaub ntawv hauv cov ntawv nyeem yooj yooj yim thiab nws yog lub platform ywj siab. Qhov txiaj ntsig tseem ceeb ntawm XML yog nws yooj yim rau kev sib faib cov ntaub ntawv. Cov ntaub ntawv tuaj yeem muab los ntawm ib qho program thiab hloov mus rau XML. Cov ntaub ntawv ntawd tuaj yeem muab faib rau lwm qhov program lossis platform. Nws ua rau cov ntaub ntawv tsim thiab hloov pauv ntawm qhov sib txawv incompatible systems yooj yim.
Hauv HTML, tus programmer yuav tsum hloov txhua zaus cov ntaub ntawv los tso saib cov ntaub ntawv dynamic. Thaum siv XML, XML cov ntaub ntawv tuaj yeem khaws cais thiab tuaj yeem nyeem tau siv JavaScript ua cov ntaub ntawv XML sab nraud. Tom qab ntawd nws yooj yim los hloov kho cov ntaub ntawv cov ntsiab lus ntawm nplooj ntawv web. Cov kev hloov pauv ua rau cov ntaub ntawv HTML yuav tsis cuam tshuam cov ntaub ntawv. XML kuj tseem siv rau hauv kev tsim cov layout rau hauv daim ntawv thov. Nws kuj tseem tuaj yeem siv nrog cov ntaub ntawv databases thiab teeb tsa lub moj khaum.
Tam sim no, JavaScript Object Notation (JSON) kuj tseem siv tau los ua lwm txoj hauv kev rau XML vim nws cov syntax yooj yim nyeem thiab sau. Tab sis, XML kuj tau siv dav hauv ntau daim ntawv thov. Feem ntau, XML yog siv los khaws thiab npaj cov ntaub ntawv los kho cov ntaub ntawv xav tau.
XSD yog dab tsi?
Document Type Definition (DTD) yog siv los piav txog XML lus meej. Nws yog siv los txhais cov qauv ntawm cov ntaub ntawv XML. Nws muaj cov npe ntawm kev cai lij choj thiab tuaj yeem siv los ua qhov tseeb. XSD sawv rau XML Schema Definition. Nws yog siv los txhais cov qauv thiab cov ntsiab lus ntawm cov ntaub ntawv XML. XSD muaj qhov zoo dua li DTD. XSD yog extensible thiab yooj yim dua DTD. Nws kuj txhawb cov ntaub ntawv hom thiab namespaces. XSD muab kev tswj hwm ntawm tus qauv ntau dua li DTD.
XSD tuaj yeem siv los txheeb xyuas qhov siv tau ntawm cov qauv thiab cov lus ntawm XML cov ntaub ntawv tawm tsam cov kev cai grammatical ntawm cov lus tsim nyog XML. Ib daim ntawv XML yuav tsum tau tsim kom zoo thiab siv tau. Yog tias daim ntawv XML tau siv XML cov cai (xws li ua zes cov cim npe, qhib thiab kaw cov cim npe kom raug thiab lwm yam), ces cov ntaub ntawv XML tau tsim zoo. Yog tias cov ntaub ntawv raug lees paub tawm tsam XSD, ces nws yog ib daim ntawv tsim tau zoo thiab siv tau XML. Yog li, nws tuaj yeem siv los txhais cov qauv thiab cov ntsiab lus ntawm XML daim ntawv.
Kev sib raug zoo ntawm XML thiab XSD yog dab tsi?
XSD yog siv los txhais cov qauv thiab cov ntsiab lus ntawm XML daim ntawv
Qhov txawv ntawm XML thiab XSD yog dab tsi?
XML vs XSD |
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| XML yog cov lus cim uas txhais cov txheej txheem rau encoding cov ntaub ntawv hauv hom uas tib neeg nyeem tau thiab tshuab nyeem tau. | XSD yog cov lus piav qhia ntawm hom XML cov ntaub ntawv, qhia txog kev txwv ntawm cov qauv thiab cov ntsiab lus ntawm cov ntaub ntawv ntawm hom, saum toj no thiab dhau ntawm cov kev txwv yooj yim uas tau tsim los ntawm XML nws tus kheej. |
| XML stands for Extensible Markup Language. | XSD stands rau XML Schema Definition. |
| XML yog siv los tsim thiab hloov cov ntaub ntawv yooj yim ntawm cov tshuab tsis sib xws. | XSD yog siv los txhais cov qauv thiab cov ntsiab lus ntawm XML daim ntawv. |
Summary – XML vs XSD
Ntau lub koom haum siv ntau lub tshuab. XML yog ib txoj hauv kev uas tuaj yeem siv los hloov cov ntaub ntawv ntawm cov kev pabcuam sib txawv thiab cov platforms. XSD muaj feem xyuam rau XML. Kab lus no tau tham txog qhov sib txawv ntawm XML thiab XSD. Qhov sib txawv ntawm XML thiab XSD yog tias XML yog cov lus cim uas yog ib txoj hauv kev yooj yim ntawm kev tsim thiab sib koom cov ntaub ntawv tshaj qhov tsis sib xws thaum XSD yog siv los txhais cov qauv thiab cov ntsiab lus ntawm XML daim ntawv.
