Cov txheej txheem:

Cov tswv yim dab tsi suav nrog hauv hnub tim tswv yim hauv html5?
Cov tswv yim dab tsi suav nrog hauv hnub tim tswv yim hauv html5?

Video: Cov tswv yim dab tsi suav nrog hauv hnub tim tswv yim hauv html5?

Video: Cov tswv yim dab tsi suav nrog hauv hnub tim tswv yim hauv html5?
Video: Tus Cawm Seej Hloov Neeg Txoj Hmoo (HD) 2024, Hlis ntuj nqeg
Anonim

Muaj ob hom tswv yim txhawb rau " hnub tim ”zoo li inputs . 2. Cov " hnub tim - hauv zos ” input hom yog a hauv zos hnub-thiab-lub sijhawm nkag tswj. Ib nkag tswj nrog " hnub tim - hauv zos ” input hom sawv cev rau tus tswj uas nws lub ntsiab tus nqi sawv cev rau a hauv zos hnub thiab sijhawm (thiab tsis muaj cov ntaub ntawv teev sijhawm).

Tsis tas li ntawd, hom kev tawm tswv yim hauv HTML yog dab tsi?

Tus cwj pwm xav tau qhia tias ib qho nkag daim teb yuav tsum tau sau ua ntej xa daim foos. Tus cwj pwm xav tau ua haujlwm nrog cov hauv qab no hom tswv yim : text, search, url, tel, email, password, date pickers, tooj, checkbox, radio, and file.

yam twg html5 cov tswv yim tso cai rau tus neeg siv xaiv hnub thiab sijhawm nrog lub sijhawm? hnub tim. Peb tuaj yeem ua ke cov hnub thiab sijhawm los ntawm kev siv hom ="datetime" rau kev qhia meej sij hawm ntawm ib hnub, raws li qhia hauv daim duab 15.

Ntawm no, lub sij hawm input system yog dab tsi?

Cov nkag element, muaj cov " sij hawm "tus nqi nyob rau hauv nws hom attribute, sawv cev rau ib daim teb rau a sij hawm nkag . Hauv browsers niaj hnub sij hawm cov teb feem ntau yog sawv cev los ntawm kev tswj hwm uas ua rau cov neeg siv hloov pauv nws tus nqi hauv graphical txoj kev, es tsis txhob muaj nkag nws ncaj qha raws li ib txoj hlua.

Cov tswv yim hom sij hawm teev tus nqi li cas?

Input Time defaultValue Property

  1. Hloov tus nqi pib ntawm lub sijhawm teb: getElementById("myTime"). defaultValue = "18:00";
  2. Tau txais tus nqi pib ntawm lub sijhawm teb: getElementById("myTime"). defaultValue;
  3. Ib qho piv txwv uas qhia qhov txawv ntawm qhov defaultValue thiab tus nqi khoom: getElementById("myTime"); var defaultVal = x. defaultValue;

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