Hauv HTML 4, cov npe ntawm cov khoom khoob, piv txwv li cov ntsiab lus nrog EMPTY raws li cov ntsiab lus tshaj tawm, yog cov hauv qab no: area, puag, basefont, br, col, frame, hr, img, input, isindex, link, meta, param.
Dab tsi yog qhov khoob?
Ib qho khoob yog ib lub ntsiab lus los ntawm HTML, SVG, lossis MathML uas tsis tuaj yeem muaj tus menyuam nodes (piv txwv li, cov ntsiab lus zes lossis cov ntawv nyeem). Cov HTML, SVG, thiab MathML specifications txhais tau meej heev tias txhua lub ntsiab lus tuaj yeem muaj. … Hauv HTML, siv lub cim kaw ntawm qhov khoob khoob feem ntau yog siv tsis tau.
Dab tsi yog cov ntsiab lus khoob muab piv txwv?
Cov ntsiab lus khoob (tseem hu ua tus kheej kaw lossis tsis muaj cov ntsiab lus) tsis yog lub thawv ntim - txhais tau tias, koj tsis tuaj yeem sau qee cov ntsiab lus lossis
qee cov ntsiab lus. Ib qho piv txwv ntawm qhov khoob, yog the
element, uas sawv cev rau kab tawg.
Puas yog daim ntawv tsis muaj dab tsi?
Cov ntsiab lus tsis muaj nyob hauv HTML 4.01/XHTML 1.0 nruj yog thaj tsam, puag, br, col, hr, img, input, txuas, meta, thiab param. HTML5 tam sim no ntxiv cov lus txib, keygen, thiab qhov chaw rau cov npe ntawd. Nqe uas tsis muaj kaw yog paub ua ib daim tag.
Cov ntsiab lus twg yog qhov khoob Mcq?
teb: b. Empty elements yog cov ntsiab lus uas tsis muaj cov ntaub ntawv. Piav: Lub ntsiab lus uas tsis muaj cov ntsiab lus hauv lawv tus kheej thiab tsis muaj qhov kawg taghauv HTML yog hu ua Empty Elements.
