ASCII Code Control Cov Cim
Muaj tseeb koj tau xav paub txog yuav ua li cas lub ntiaj teb lub computer ua haujlwm, zoo, nws yog qhov nyuaj tshaj li peb xav thiab tom qab ua haujlwm yooj yim xws li sau rau ntawm daim ntawv lo lus lossis xa ib daim ntawv luam tawm, muaj cov txheej txheem uas tshwm sim hauv microseconds uas yav tas los encoded.
American Standard Code for Information Exchange los yog ASCII rau nws cov lus sau hauv lus Askiv, yog cov cim lossis cov cim uas ua raws li Latin rau -raws li nws lub npe hais - pauv cov ntaub ntawv thiab ua kom raug.
Cov lus tswj cov cim thiab ASCII code cim
ASCII code tswj cov cim yog dab tsi?
Lawv muaj, cov ASCII code printable cim uas yog cov uas peb tuaj yeem pom thiab cov cim tswj uas yog cov neeg xa cov ntaub ntawv los ua haujlwm, xws li xa cov ntaub ntawv los luam tawm, piv txwv li.
Cov cim thiab cov cim ntawm ob qhov no tshwm sim hauv qee yam hu ua ncua ASCII code cim thiab lawv yog cov cim "ntxiv" uas peb siv txhua hnub, xws li: ¡,',?,-,€,#, thiab lwm yam.
To taub qhov no, peb tuaj yeem hais tias ASCII code tswj cov cim tsis yog cov uas peb tuaj yeem pom, tab sis cov uas peb lawv raug tua nyob rau hauv lub system los ua ib tug hais kom ua.
ASCII code tswj cov cim thiab cov cim tau tshwm sim los muab kev daws teeb meem thoob ntiaj teb, thiab qhov ntawd yog Ntau xyoo dhau los, cov ntaub ntawv tsis yooj yim rau kev xa tawm raws li tam sim no.
Nyob ntawm seb lub computer siv los ntawm cov neeg siv, lub operating system varied, thiab nrog nws, hom ntawv uas cov ntaub ntawv yuav muab faib varied, uas yog, ib cov ntaub ntawv tsis zoo los yog nyeem tib yam ntawm ib lub computer li nws tau ua rau lwm tus.
Qhov no tshwm sim vim hais tias txhua lub computer tau coded txawv, cia peb nco ntsoov tias, thaum pib ntawm lub computer muaj hnub nyoog, qhov kev thov tsis ntau npaum li niaj hnub no thiab. muaj ntau txoj hauv kev los encode cov ntxhuav, cov cim, cov lej thiab lwm tus tus kheej.
Raws li qhov kev thov rau cov khoom siv hluav taws xob tau nce ntxiv thiab qhov xav tau los sib qhia cov ntaub ntawv zoo li loj hlob, qhov ASCII code.
Nyob rau hauv txoj kev no, nws muaj peev xwm muab kev daws teeb meem, uas tau tsim.
ASCII code tswj cov cim tau tseg nrog thawj peb caug-ob tus lej, uas suav nrog 0 txog 31; lawv tsis tau npaj los ntawm qhov pib los sawv cev cov ntaub ntawv luam tawm, tab sis tswj cov khoom siv.
Lawv siv rau dab tsi?
ASCII code tswj cov cim yog siv los muab cov lus txib, uas yog, kom ua tiav cov lus txib thiab tuaj yeem rov ua dua qhov kev txiav txim ob lub rooj thiab cov cim.
Piv txwv li, txhua yam peb ua nrog lub computer, nws tau raug muab tso rau hauv cov ntxhuav ib lub cim uas sib haum rau ASCII code tswj cov cim, txij li thaum, yog tias qhov kev txiav txim "rho tawm" raug muab rau tus lej 125, txhua zaus koj nias lub pob rho tawm, tus lej no tau rov ua dua los ntawm tus yuam sij rau lub khoos phis tawj tswj, thiab qhov koj xaiv tau raug tshem tawm.
Lwm qhov piv txwv yog luam tawm ib daim ntawv lossis ib daim duab, thaum lub sijhawm peb xaiv qhov kev xaiv luam tawm executes ib tug code uas sib haum mus rau dab tsi yog muab rau hauv lub cim lub rooj ASCII code tswj.
Nyob rau hauv txoj kev no, ASCII code tswj cov cim tau hloov zuj zus mus txog thaum lawv muaj thoob ntiaj teb thiab yuav luag txhua yam khoom siv muaj lawv.
ASCII code tswj cov cim siv li cas?
Muaj ib lub rooj uas koj tau muab ib txoj cai uas sib haum rau ASCII code tswj cov cim.
Qhov tseeb, koj siv cov ASCII code tswj cov cim txhua hnub, piv txwv li, thaum koj siv tsab ntawv ESC tawm ntawm lub vijtsam puv npo hauv YouTube.
Lossis kuj, thaum koj siv tus yuam sij TAB, uas yog tus saib xyuas kev txav tus cursor hauv ib kab ntawm txoj haujlwm uas tau hais tseg yav dhau los hauv qhov no, thiab feem ntau ntawm kab rov tav, txawm hais tias tib txoj kev, muaj VT, uas yog qhov ntsug tab.
Ntawm qhov rais
Hauv Windows operating system, koj tuaj yeem ntxig cov lus txib uas tsis yog keyboard tsuas yog siv daim ntawv qhia ua cim los ntawm nias lub pob pib.
Thaum lub qhov rais tshwm, koj yuav tsum ntaus "charmap" hauv daim teb tshawb nrhiav thiab koj yuav mus Nyem rau ntawm qhov kev xav tau.
Tom qab koj ua tiav cov kauj ruam no, daim ntawv qhia ua cim yuav tshwm sim ntawm qhov screen, ua tiav nrog txhua yam uas muaj, tsuas yog xaiv qhov koj xav khiav thiab qhov ntawd yog nws.
Nyob Mac
Yog tias koj nyob hauv ib lub cuab yeej nrog iOS operating system xws li Macs, peb yuav siv cov keyboard shortcuts.
Muaj ntau ntau thiab nws yuav txawv nyob ntawm seb koj xav tau dab tsis, piv txwv li, kom tawm tag nrho cov kev pab cuam ntawm Mac koj yuav xav tau Exit hais kom ua, nrog rau ib qho shortcut lossis nrog cov ntawv qhia zaub mov hauv daim ntawv thov vim tias nrog X liab nws tsis tawm kiag li:
- Txhawm rau yuam kom tawm ib qho app tsis teb, tuav Command + Shift + Option + Esc rau peb vib nas this.
- Txhawm rau kaw txhua lub qhov rais uas koj siv siv Command + W
- Txhawm rau kaw txhua qhov qhib qhov rais hauv app, siv Option + Command + W
- Txhawm rau qhib lub tab tshiab hauv txhua qhov browser, siv Command + T
- Txhawm rau qhib cov ntaub ntawv tshiab, nias Command + N
- Txhawm rau nkaum lub qhov rais ntawm daim ntawv thov koj siv, nias Command + H
- Txhawm rau nkaum txhua lub qhov rais app uas twb muaj lawm thiab rov qab mus rau qhov screen tom qab, siv Command + Option + H
- Txhawm rau qhia qhov rov pib dua, pw tsaug zog lossis kaw lub rooj sib tham nias Ctrl + Eject
- Txhawm rau tso cov zaub kom tsaug zog nias Shift + Control + Eject
- Txhawm rau muab lub computer pw tsaug zog nias Command + Alt + Eject
- Txhawm rau txuag lossis kaw txhua daim ntawv thov thiab tom qab ntawd, rov pib dua MAC, siv Command + Control + Eject
- Txhawm rau tawm ntawm koj tus neeg siv OS X tus account, siv Command + Shift + Q, txawm hais tias qhov no yuav nug kom paub meej.
Nyob rau Linux
Txhawm rau siv nws hauv kev ua haujlwm pub dawb, xws li Linux, cov txheej txheem feem ntau txawv me ntsis vim tias cov cim tswj tau hloov pauv thiab koj yuav tsum. paub hex code uas koj xav tau, vim hais tias feem ntau lwm ob lub tshuab ua haujlwm dhau los siv cov lej.
Txhawm rau kom qhib lub qhov rais sau ib qho ntawm cov cim tswj, koj yuav tsum nias Ctrl + Ua haujlwm + U yuam sij kom tom qab tshawb nrhiav bar qhib koj nkag mus rau hexadecimal code.
Piv txwv li, pib lub laij lej scientific hauv Windows davhlau ya nyob twg tus lej lej yog 126, yog tias peb hloov mus rau hexadecimal system peb tau txais 7E, yog li peb ntaus 7E hauv lub tshuab tshawb nrhiav thiab ntaus Enter.
Qhov no yog ib txoj hauj lwm uas tsheej lab ntawm cov programmers tau koom nrog, yog li ntawd lub system thiab cov ASCII code tswj cov cim ua tib yam lus universally.
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