Dynamic HTML tsis yog tiag tiag tus tshiab specification ntawm HTML, tab sis yog txoj kev tshiab saib thiab tswj cov txheej txheem HTML cim thiab cov lus txib.
Thaum xav txog dynamic HTML , koj yuav tsum nco ntsoov qhov zoo ntawm tus txheej txheem HTML, tshwj xeeb tshaj yog tias thaum twg ib nplooj ntawv yog thauj ntawm tus neeg rau zaub mov, nws yuav tsis hloov kom txog thaum lwm qhov kev thov tuaj rau tus neeg rau zaub mov. Dynamic HTML muab rau koj ntau dua cov HTML ntsiab thiab tso cai rau lawv hloov txhua lub sij hawm, tsis rov mus rau qhov Web server.
Muaj plaub qhov chaw rau DHTML:
- Daim ntawv ua qauv qauv (DOM) (txhais)
- Scripts
- Cascading Style Sheets (CSS)
- XHTML
DOM
DOM yog dab tsi pub rau koj nkag tau rau txhua feem hauv koj qhov Web site los hloov nrog DHTML. Txhua qhov ntawm nplooj ntawv Web yog teev los ntawm DOM thiab siv nws cov kev cai naming kom haum koj tuaj yeem nkag rau lawv thiab hloov lawv cov khoom.
Scripts
Scripts sau hauv JavaScript los yog ActiveX yog ob hom lus scripting siv los qhib DHTML. Koj siv hom ntawv sau ntawv los tswj cov khoom uas teev hauv DOM.
Cascading Style Sheets
CSS siv rau hauv DHTML los tswj qhov kev xav thiab kev xav ntawm lub Web page. Cov ntawv txheeb cov qauv txheeb xyuas cov xim thiab cov ntawv ntawm cov ntawv nyeem, cov xim tom qab thiab cov duab, thiab qhov chaw kawm ntawm cov khoom. Siv cov scripting thiab DOM, koj tuaj yeem hloov qhov style ntawm ntau yam.
XHTML
XHTML lossis HTML 4.x yog siv los tsim cov nplooj ntawv nws tus kheej thiab tsim lub ntsiab rau CSS thiab DOM los ua haujlwm. Muaj dabtsi tshwj xeeb txog XHTML rau DHTML - tab sis thaum koj siv tau XHTML tseem ceeb dua, vim muaj ntau yam ua haujlwm los ntawm nws tshaj li qhov browser xwb.
Nta ntawm DHTML
Muaj plaub yam nta ntawm DHTML:
- Hloov cov cim npe thiab cov khoom
- Tiag tiag tso chaw
- Dynamic fonts (Netscape Communicator)
- Cov ntaub ntawv khaws tseg (Internet Explorer)
Hloov cov cim thiab Cov Khoom
Qhov no yog ib qho kev siv ntau tshaj ntawm DHTML. Nws tso cai rau koj los hloov cov kev ua ntawm cov cim HTML nyob ntawm ib qho kev tshwm sim sab nraud ntawm qhov browser (xws li nas nias, lub sijhawm, lossis hnub, thiab ntxiv). Koj tuaj yeem siv qhov no rau cov ntaub ntawv ua ntej nkag mus rau ib nplooj ntawv, thiab tsis txhob tso tawm nws tshwj tsis yog tias tus nyeem ntawv tawm ntawm ib qhov txuas.
Tiag tiag Thaj Chaw
Thaum neeg feem coob xav DHTML qhov no yog qhov lawv xav tau. Cov khoom, cov duab, thiab cov ntawv nyeem nyob rau ntawm nplooj ntawv Web. Qhov no tuaj yeem tso cai rau koj los ua si sib tham sib ua si nrog koj nyeem los sis animate feem ntawm koj qhov screen.
Dynamic Fonts
Qhov no yog ib qho Netscape nkaus xwb. Netscape tsim qhov no kom tau nyob ib ncig ntawm cov tsim teeb meem tsim nrog tsis paub tias dab tsi yuav tsum tau rau ntawm tus nyeem ntawv lub cev. Nrog cov xim fonts, cov fonts yog encoded thiab downloaded nrog cov nplooj, yog li hais tias cov nplooj ib txwm zoo li cas tus designer npaj rau.
Cov Ntaub Ntawv Kev Ruaj Ntseg
Qhov no yog IE tsuas feature. Microsoft tsim qhov no kom cia cov kev nkag tau yooj yim dua mus rau hauv cov Web site . Nws zoo ib yam li siv CGI kom nkag tau mus rau ib lub database tab sis siv ActiveX tswj kom muaj nuj nqi. Qhov no feature yog heev lawm thiab nyuaj siv rau cov thawj DHTML txawj sau ntawv.