Kuyini I-Tag Tag Ehlukana Ne-HTML Element?

Kukhona umehluko phakathi kwale mibandela emibili

Idizayini yewebhu, njenganoma yimuphi umkhakha noma ubuchwepheshe, unalo lonke ulimi. Njengoba ungena embonini bese uqala ukukhuluma noontanga yakho, ngokuqinisekile uzongena emigameni nemigomo emisha kuwe, kodwa yikuphi ukugeleza kwezilimi zabasebenzi bakho bewebhu. Amagama amabili ozowazwa yi-HTML "tag" kanye "nesici".

Njengoba uzwa la magama amabili ekhulunywe, ungase uqaphele ukuthi asetshenziswe ngendlela ehlukile. Njengoba kunjalo, umbuzo owodwa ukuthi ochwepheshe abaningi bewebhu abasha uma beqala ukusebenza ngekhodi ye-HTML "yimuphi umehluko phakathi kwe-Tag Tag ne-HTML Element?"

Ngenkathi la magama amabili efana nalokho okushoyo, akuzona izivumelanisa ngempela. Ngakho-ke yikuphi ukufana nale mibandela emibili? Impendulo emfushane ukuthi kokubili amathegi nezakhi kubhekisela emakethe asetshenziselwa ukubhala i-HTML. Isibonelo, ungase uthi usebenzisa

ithegi ukuchaza isigaba noma isici ukudala izixhumanisi. Abantu abaningi basebenzisa amagama amathegi nesici ngokungafani, futhi noma yimuphi umklami wewebhu noma umthuthukisi okhuluma naye uzoqonda ukuthi usho ukuthini, kodwa iqiniso liwukuthi kukhona umehluko ophakathi kwamagama amabili.

I-HTML ulimi lwama-markup , okusho ukuthi kubhaliwe ngamakhodi angafundwa ngumuntu ngaphandle kokudinga ukuhlanganiswa kuqala. Ngamanye amazwi, umbhalo ekhasini lewebhu "limakwe" ngalezi zimakhodi ukunikeza imiyalelo yesiphequluli sewebhu ukuthi ungabonisa kanjani umbhalo. Lezi tag tags amathegi HTML ngokwabo.

Uma ubhala i-HTML, ubhala amathegi we-HTML. Wonke amathegi e-HTML akhiwe eziningana zezingxenye ezithile, kuhlanganise:

• Isibonakaliso esingaphansi <
• Igama noma uhlamvu oluthatha ukuthi ithegi ibhaliwe
• Noma iyiphi inombolo yezimfanelo ze-HTML ozikhethela ngendlela yegama = "value" pair
• Futhi ekugcineni isibonakaliso esikhulu kunazo zonke

Isibonelo, nansi amanye amathegi we-HTML:

Lawa wonke amathegi evula i-HTML, ngaphandle kwezimfanelo ezikhethwa kuzo. Lawa matje abamele:

• - ichaza isigaba.

• - ichaza ikhasi njenge-HTML
• - ichaza ukuhlukaniswa.

Okulandelayo kukhona amathegi we-HTML:

• Lezi zibonelo zonke zihlanganisa izimfanelo ezongezwe kumathegi we-HTML okuvula.

  • I-
    yohlu olungavumelekile olufaka umphumela we-ID
    • Lesi sigaba sinemfanelo yesigaba
    • Ihange, noma isixhumanisi, isici sihlanganisa imfanelo ethi "href"
    • Ithegi yesithombe enekhwalithi "ye-src"

    Ukuze i-anchor namathegi ezithombe, izimfanelo empeleni azikhethanga, zidingekile kulawo ma tag ukuthi abonise kahle. Udinga ukutshela isixhumanisi lapho kufanele khona (yilokho okushiwo "i-href") nesithombe ukuthi uzobonisani (yilokho okushiwo yi-"src").

    Yiziphi Ama-HTML Elements

    Ngokwesimo se- W3C se- HTML, isici yisakhiwo esiyisisekelo se-HTML futhi ngokuvamile sakhiwa amathegi amabili : ithegi yokuvula nesitoreji sokuvala. Kuze kube manje sibheke kuphela amathegi okuvula, aqala izinto. Ukuqeda leso sici, ubhala amathegi wokuvala afanayo.

    Isibonelo, isigaba sendima ubhala lokhu:

    Lokhu kwakha umaki wokuvula esiwubone umzuzwana odlule kanye nethe lokuvala - . Amathegi wokuvala amane nje amatheli okuvula aphindaphindiwe, kodwa "ukukhishwa phambili" kufakwe ngokuqondile ngemuva kokuthi "okungaphansi kwesimboli".

    Cishe zonke izakhi ze-HTML zinomaka wokuvula nesitaki sokuvala. Lawa makaki azungeze umbhalo ozobonisa ekhasini lewebhu. Isibonelo, ukubhala isigaba sombhalo, ubhala umbhalo ozoboniswa ekhasini bese ulizungezile ngalawa amathegi:

    Yilapho ungabhala khona umbhalo wesigaba ongathanda ukuboniswa kukhasi lewebhu.

    Ezinye izakhi ze-HTML azinawo ithegi yokuvala. Lezi zibizwa ngokuthi "izakhi ezingenalutho". Ngezinye izikhathi, kuthiwa yi " singleton " noma "ezingenalutho" izakhi. Izinto ezingenalutho kulula ukuyisebenzisa ngoba kufanele ufake ithegi eyodwa ekhasini lakho lewebhu futhi isiphequluli sizokwazi ukuthi yini okufanele uyenze. Isibonelo, ukwengeza ukuhlukana okukodwa kwekhasi lakho ungasebenzisa i-b
    tag.

    Esinye isici esivamile esihlanganisa ithegi yokuvula ingxenye "yesithombe". Ngokwesibonelo:

    Sibone lesi sibonelo ngaphambili, kepha akukho taki lokuvala laleli sici sesithombe. Isiphequluli sizovele sithathe esikhundleni salokhu ikhodi ngesithombe esichazwe ku-"href". Kulesi simo, lokho kuzoba "logo.png".

    Ngokuvamile, lapho ngibhekisela ku-HTML element noma ithegi, ngizosebenzisa igama elithi "element" ukukhombisa ukuthi ngibhekisela kuzo zonke izingxenye zesici (kokubili amathegi okuvula nokuvala). Ngisebenzisa "ithegi" nginguye kuphela okubhekiselweyo kuphela noma okunye. Lokhu kusetshenziswe kahle kwale mibandela emibili, futhi ngikukhuthaza ukuba uwasebenzise kahle - kodwa wazi ukuthi uma ushaya futhi uwashintshe kancane, uzobe uqondwa ngabangani bakho abasha bokuthuthukisa iwebhu!

    Isihloko sokuqala sikaJennifer Krynin. Ihlelwe nguJeremy Girard ngo-7/21/17