Cov txheej txheem:

Input file yog dab tsi?
Input file yog dab tsi?

Video: Input file yog dab tsi?

Video: Input file yog dab tsi?
Video: Data Science with Python! Analyzing File Types from Avro to Stata 2024, Kaum ib hlis
Anonim

cov ntaub ntawv nkag - (computer science) lub computer ntaub ntawv uas muaj cov ntaub ntawv uas ua haujlwm li nkag mus rau ib lub cuab yeej lossis qhov program. nkag cov ntaub ntawv.

Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog cov ntaub ntawv tso tawm?

tso zis ntaub ntawv - (computer science) lub computer ntaub ntawv uas muaj cov ntaub ntawv uas yog cov tso zis ntawm ib lub cuab yeej lossis qhov program. computer science, xam - ceg ntawm engineering science uas kawm (nrog kev pab ntawm computers) xam cov txheej txheem thiab cov qauv.

Tom qab ntawd, lo lus nug yog, Kuv yuav hloov pauv tus nqi nkag ntawm cov ntaub ntawv li cas? Koj ua tsis tau. Lub xwb txoj kev teeb tus tus nqi ntawm a cov ntaub ntawv nkag yog los ntawm tus neeg siv los xaiv a ntaub ntawv . Qhov no yog ua rau kev ruaj ntseg. Txwv tsis pub koj yuav muaj peev xwm tsim Javascript uas tau uploads ib qho tshwj xeeb ntaub ntawv los ntawm cov neeg siv computer.

Nyob rau hauv no txoj kev, input hom ntaub ntawv ua hauj lwm li cas?

Cov nkag element, muaj cov " ntaub ntawv "tus nqi hauv nws hom tus cwj pwm, sawv cev rau kev tswj kom xaiv cov npe ntawm ib lossis ntau dua cov ntaub ntawv yuav tsum upload rau lub server. Thaum lub form yog xa, xaiv cov ntaub ntawv yog upload rau lub server, nrog rau lawv lub npe thiab hom . Server-side checks yuav tsum tau ua ib txwm ua.

Yuav ua li cas sau ib cov ntaub ntawv hauv C ++?

Nyeem cov ntawv nyeem yog ib qho yooj yim heev uas siv ifstream (cov ntaub ntawv tawm tswv yim)

  1. suav nrog cov headers tsim nyog. # suav nrog siv namespace std;
  2. Tshaj tawm cov ntaub ntawv tawm tswv yim (ifstream) hloov pauv.
  3. Qhib cov ntaub ntawv ntws.
  4. Xyuas tias cov ntaub ntawv tau qhib.
  5. Nyeem los ntawm cov kwj deg tib yam li cin.
  6. Kaw cov dej nkag.

Pom zoo: