Npaum Li Cas Thiaj Li Khawm

Cov txheej txheem:

Npaum Li Cas Thiaj Li Khawm
Npaum Li Cas Thiaj Li Khawm

Video: Npaum Li Cas Thiaj Li Khawm

Video: Npaum Li Cas Thiaj Li Khawm
Video: Npaum Li Cas - David Yang (Prod. By Keeneng Vang) 2024, Kaum ib hlis
Anonim

Qee zaum, thaum tso tawm lub vev xaib, nws yog qhov tsim nyog kom zais qee cov ntsiab lus muab tso rau hauv nws. Piv txwv li, yog tias koj xav kom tus qhua tsis pom daim foos xa cov nyees khawm mus txog thaum txhua daim teb uas yuav tsum tau sau. Los yog tias lub pob yog tsis xav kom siv los ntawm tus qhua txhua, tab sis cov ntawv sau rau ntawm nplooj ntawv no yuav tsum "nyem" nws.

Npaum li cas thiaj li khawm
Npaum li cas thiaj li khawm

Cov Lus Qhia

Kauj ruam 1

Siv cov cuab yeej rau cov khoom nthuav tawm ntawm Cascading Style Sheets (CSS) los tua lossis ntawm cov zaub ntawm cov nplooj ntawv xav tau. Raws li cov qauv thoob ntiaj teb, cov cuab yeej no tuaj yeem muab ntau tshaj ib thiab ib nrab kaum tus nqi uas qhia cov qauv sib txawv. Txawm li cas los xij, tsuas yog plaub tus yog tus browser hla (i.e., ua haujlwm hauv txhua tus browser loj). Ntawm plaub no, tsis muaj ib qho nqi uas koj xav tau, uas tso cai rau koj zais cov nplooj ntawv xav ua.

Kauj ruam 2

Tsim cov cai tsim ntawm CSS cov txheej txheem. Hauv nws qhov yooj yim tshaj plaws, nws yuav zoo li qhov no: khawm {zaub: tsis muaj;} Hauv qhov no, nplooj ntawv yuav tsis tso txhua lub khawm uas siv tus cim npe….

Kauj ruam 3

Ntxiv qhov ntsuas rau cov npe ntawm lub npe hauv cov lus qhia yog tias koj xav zais tsuas yog ib tus khawm lossis ib pawg ntawm cov nyees khawm. Piv txwv li, npe xws li chav kawm HideBtns thiab ntxiv lub npe no rau CSS daim ntawv qhia: khawm. HideBtns {zaub: tsis muaj;} Ntxiv cov chav ntaus cim rau cov khawm xav hauv HTML code ntawm nplooj ntawv thiab muab nws rau tus nqi HideBtns: zais khawm

Kauj ruam 4

Siv cov khoom lag luam nrog cov tsis muaj nqi rau niam txiv lub ntsiab yog tias koj xav tau, piv txwv li, zais tsis yog khawm nkaus xwb, tab sis lwm cov ntsiab lus hauv web fev nrog. Daim foos txiav txim siab yog "niam txiv" ntawm txhua lub ntsiab muab tso nruab nrab ntawm daim phiaj thiab cim npe. Piv txwv li:

Ntawm no, kab ntawv sau thiab ib lub pob rau xa tus nqi nkag tau muab tso rau sab hauv daim foos. Daim foos tau muab rau hauv chav kawm npe hu ua HideForm, yog li txhawm rau txhawm rau txhawm rau nkag thiab khawm, koj yuav tsum hloov CSS daim ntawv qhia zoo li no: form. HideForm {zaub: tsis muaj;}

Kauj ruam 5

Muab cov code npaj rau hauv qhov ua piv txwv saum toj saud hauv lub header ntawm daim ntawv web (ntawm cov thiab cim npe). Txhawm rau qhia tus qhua tus browser tias qhov no yog CSS code, nws yuav tsum muab ntim ntawm qhov qhib thiab kaw HTML style cim npe:

khawm. HideBtns {zaub: tsis muaj;}

Pom zoo: