Video: Dab tsi yog qhov node hauv HTML?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A " node ", hauv cov ntsiab lus no, tsuas yog ib qho HTML keeb. Lub "DOM" yog ib tsob ntoo qauv uas sawv cev rau tus HTML ntawm lub vev xaib, thiab txhua tus HTML element yog ib " node ". Saib Cov Ntaub Ntawv Tus Qauv Qauv (DOM). Ntau qhov tshwj xeeb, " Node " yog ib qho interface uas yog siv los ntawm ntau yam khoom siv, suav nrog "cov ntaub ntawv" thiab "element".
Tom qab ntawd, cov ntawv node hauv HTML yog dab tsi?
Txhua yam saib tau HTML ntawv hauv ib nplooj ntawv (tshwj tsis yog ntawv nyeem nyob rau hauv daim ntawv hais los yog kev cai embedded khoom) yog nyob rau hauv ntawv nodes . Piv txwv li, div yog ELEMENT node uas tuaj yeem muaj menyuam nodes . Cov me nyuam nodes tuaj yeem ua lwm yam ELEMENT nodes los yog lawv tuaj yeem yog TEXT nodes los yog COMMENT nodes los yog lwm hom nodes.
Kuj Paub, yog HTML tag suav tias yog ib qho ntawm? A HTML element yog a node . Ib XML keeb yog a node.
Ib yam li ntawd, koj tuaj yeem nug, qhov node hauv coding yog dab tsi?
Node (computer science) Los ntawm Wikipedia, phau ntawv dawb ceev. A node yog ib chav tsev ntawm cov ntaub ntawv qauv, xws li cov npe txuas lossis cov ntaub ntawv ntoo. Nodes muaj cov ntaub ntawv thiab tseem tuaj yeem txuas rau lwm yam nodes . Kev sib txuas ntawm nodes feem ntau siv los ntawm cov taw qhia.
Hom node yog dab tsi?
nodeType vaj tse yog ib qho integer uas qhia tias qhov twg node yog. Nws distinguishes txawv zoo ntawm nodes los ntawm ib leeg, xws li cov ntsiab lus, ntawv nyeem thiab cov lus pom.
Pom zoo:
Dab tsi yog qhov dav thawj qhov kev tshawb nrhiav thiab qhov tob thawj qhov kev tshawb fawb?
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Dab tsi yog qhov zoo sib xws thiab qhov txawv ntawm relays thiab PLC yog dab tsi?
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Dab tsi yog qhov sib txawv ntawm qhov ntsuas qhov ntsuas thiab qhov ntsuas thib ob?
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