Ib tsab ntawv yog qhov kev pabcuam tshwjxeeb uas npaj ib lub xaib cov kev pabcuam lossis ua cov haujlwm uas muaj txiaj ntsig zoo rau nws. Piv txwv li, ib tsab ntawv tuaj yeem cuam tshuam nrog lub hauv paus. Nws kuj tseem siv xa cov ntaub ntawv los ntawm ntau cov ntawv sau npe.
Tsim nyog
- - khoos phis tawj;
- - html kev txawj ntse.
Cov Lus Qhia
Kauj ruam 1
Txuas cov ntawv ncaj qha rau cov ntawv html. Txhawm rau ua qhov no, sau ib qho cim tseg hauv lub cev ntawm nplooj ntawv, thiab sau cov ntawv sau rau hauv nws. Ua ntej tshaj plaws, thaum lub browser nyeem nplooj ntawv, nws paub cov ntawv. Qhov browser nyeem nws thiab txiav txim siab sau cov code, thiab tsuas yog tom qab ntawd txuas ntxiv nyeem cov nplooj ntawv.
Kauj ruam 2
Yog li, txhawm rau ntxig ib hom ntawv sau, siv Hom ntaus nqi, tom qab nws, muab tso rau hauv kev kos npe sib npaug thiab sau hom ntawv sau. Tom ntej no, koj tuaj yeem ntxiv ib qho Kev Tsim, ib qho tshaj tawm tshaj tawm (teev qhov hloov hauv zos), thiab ib qho Alert muaj nuj nqi los tso lus.
Kauj ruam 3
Noj tawm cov ntawv sau java rau hauv nplooj ntawv pob. Feem ntau, tus xaib hauv chaw sim sim cais cov ntawv los ntawm cov ntaub ntawv / nplooj ntawv. Txhawm rau ua qhov no, muab cov ntawv cim tso rau hauv Lub Cim Npe, thiab tawm qhov chaw huv hauv lub cev ntawm nplooj ntawv. Nco ntsoov muaj xws li ob qho qhib thiab kaw cov ntawv cim (thiab yog li). Thaum tso cov code, nco ntsoov tias cov ntawv loj thiab cov tsiaj ntawv me me sib txawv, yog li ceev faj thaum luam cov cai los ntawm ntau cov qauv Java daim ntawv sau.
Kauj ruam 4
Xws li ib daim ntawv cais nrog cov ntsiab lus ntawm tsab ntawv, thiab suav nrog nws hauv lub vev xaib, tom qab ntawd javascript code tsis yog sau rau hauv Html. Tsuas yog ib qhov txuas rau cov ntawv tau tso rau hauv lub cev ntawm nplooj ntawv, piv txwv. Hauv java tsab ntawv nws tus kheej, sau cov cai uas koj yuav tsum tau ntxig rau hauv lub cev ntawm nplooj ntawv, raws li, piv txwv, hauv thawj kauj ruam.
Kauj ruam 5
Siv qhov kev xaiv Javascript thaum koj xav txuas tib tsab ntawv rau cov nplooj ntawv sib txawv. Yog tias lub browser tau teeb tsa kom raug, ces nws yuav zais nws thiab yuav tsis rub nws los ntawm lub server txhua zaus. Txhawm rau txuas ntau cov ntawv sau, sau daim ntawv lossis ntau zaus raws li xav tau. Yog tias koj qhia meej txog attribute src, ces cov ncauj lus ntawm cov ntawv sau yuav raug tsis quav ntsej.
