Qhov Tseem Ceeb Qhov txawv - Syntax yuam kev vs Logical yuam kev
Thaum programming, tuaj yeem ua yuam kev. Ib qho yuam kev yog qhov kev tso tawm tsis tau npaj txhij ntawm qhov program. Cov yuam kev no tuaj yeem cuam tshuam rau kev ua tiav ntawm qhov program. Yog li ntawd, nws yog ib qhov tsim nyog los tshem tawm tag nrho cov yuam kev. Ib qho yuam kev tseem hu ua kab laum. Tus txheej txheem ntawm kev txheeb xyuas qhov yuam kev thiab kho lawv yog hu ua debugging. Txhua hom lus programming muaj cov syntax tshwj xeeb. Tus programmer yuav tsum ua raws li qhov tseeb syntax los sau cov kev pab cuam. Thaum muaj syntax yuam kev, nws yog hu ua syntax yuam kev. Ib qho yuam kev syntax tshwm sim thaum sau lub sijhawm. Qhov yuam kev uas tshwm sim ntawm runtime yog hu ua runtime yuam kev. Array tawm ntawm kev khi, dhia los ntawm xoom, nkag mus rau lub cim xeeb uas tsis muaj yog qee qhov piv txwv ntawm runtime yuam kev. Thaum sau ib qhov kev pab cuam, muaj ib ntu ntawm cov kauj ruam ua raws li kev daws teeb meem. Cov txheej txheem no hu ua algorithm. Yog hais tias lub logic ntawm qhov kev zov me nyuam tsis yog lawm, nws yuav muab cov zis tsis raug. Qhov kev ua yuam kev ntawd yog lub npe hu ua kev ua yuam kev. Kab lus no tham txog qhov sib txawv ntawm qhov yuam kev syntax thiab ib qho laj thawj yuam kev. Qhov sib txawv tseem ceeb ntawm kev ua yuam kev syntax thiab cov laj thawj yuam kev yog tias, qhov yuam kev syntax tshwm sim vim qhov yuam kev hauv cov syntax ntawm ib ntu ntawm cov cim lossis cov tokens uas yog npaj los sau rau hauv ib hom lus programming thaum lub ntsiab lus yuam kev yog qhov yuam kev uas tshwm sim vim mus rau qhov txhaum nyob rau hauv qhov kev pab cuam algorithm los yog lub logic.
Syntax yuam kev yog dab tsi?
Feem ntau, cov kev pab cuam yog sau siv cov lus programming qib siab. C, Python, Java yog qee qhov piv txwv ntawm cov lus programming siab. Lub hauv paus code yog yooj yim nyeem thiab to taub los ntawm tib neeg. Cov kev pab cuam no tsis nkag siab los ntawm lub computer. Lub khoos phis tawj tsuas yog nkag siab lub tshuab code. Yog li ntawd, cov kev pab cuam theem siab yog hloov dua siab tshiab rau hauv tshuab code siv lub compiler. Txhua hom lus programming muaj nws tus kheej cov syntax los sau qhov program. Tus programmer yuav tsum sau qhov program raws li qhov tseeb syntax. Yog tsis yog, nws yuav ua rau yuam kev. Hom kev ua yuam kev no yog hu ua syntax yuam kev. Qhov yuam kev no tshwm sim thaum lub sijhawm muab tso ua ke.
Nws yog ib qho yooj yim los txheeb xyuas thiab tshem tawm syntax yuam kev vim hais tias lub compiler qhia qhov chaw thiab hom kev ua yuam kev. Thaum muaj syntax yuam kev, lub hauv paus code yuav tsis tau txhais rau hauv lub tshuab code. Yog li ntawd, kom ua tiav kev ua tiav, tus programmer yuav tsum kho qhov yuam kev syntax teev los ntawm lub compiler. Qee qhov piv txwv ntawm syntax yuam kev yog ploj lawm semicolons, uas ploj lawm curly braces, undeclared variables los yog mispelled keywords los yog identifiers. Yog hais tias tus programmer tsuas yog sau int x yam tsis muaj lub cim, nws yog qhov yuam kev syntax. Kev sau tsis raug rau 'int' yog qhov yuam kev syntax. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum ua raws li cov syntax cuam tshuam rau cov lus programming thaum sau qhov program. Qhov kev pab cuam yuav tsis sau kom txog thaum lub syntax yuam kev raug kho. Hauv kev txhais lus, qhov yuam kev syntax raug kuaj pom thaum lub sijhawm ua haujlwm, yog li nws yuav nyuaj dua rau kev sib txawv ntawm cov lus yuam kev los ntawm lwm qhov yuam kev.
Qhov laj thawj yog dab tsi?
Ib txoj haujlwm tau sau los daws qhov teeb meem. Yog li ntawd, nws ntws ib algorithm los daws nws. Ib qho algorithm yog ib kauj ruam los ntawm cov txheej txheem los daws qhov teeb meem. Qhov yuam kev tshwm sim vim muaj qhov yuam kev algorithm hu ua qhov yuam kev. Ib qho kev pab cuam uas muaj qhov ua yuam kev yuav tsis ua rau qhov kev zov me nyuam xaus qhov kev ua tiav tab sis cov khoom tsim tawm tsis raug. Thaum muaj qhov yuam kev syntax tshwm sim, nws yog ib qho yooj yim los xyuas qhov yuam kev vim hais tias cov compile qhia txog qhov yuam kev hom thiab kab uas qhov yuam kev tshwm sim. Tab sis kev txheeb xyuas qhov yuam kev yog qhov nyuaj vim tias tsis muaj cov lus sau ua ke. Cov zis tsis yog lawm, txawm tias qhov kev zov me nyuam raug tua. Yog li ntawd, tus programmer yuav tsum nyeem txhua nqe lus thiab txheeb xyuas qhov yuam kev ntawm nws tus kheej. Ib qho piv txwv ntawm kev ua yuam kev yog kev siv cov neeg ua haujlwm tsis raug. Yog hais tias tus programmer siv faib (/) tus neeg teb xov tooj es tsis txhob sib npaug (), ces nws yog qhov yuam kev.
Dab tsi yog qhov zoo sib xws ntawm Syntax yuam kev thiab cov laj thawj yuam kev?
Ob leeg Syntax yuam kev thiab cov laj thawj yuam kev yog pawg ntawm kev ua yuam kev hauv kev ua haujlwm
Dab tsi yog qhov txawv ntawm Syntax yuam kev thiab cov laj thawj yuam kev?
Syntax yuam kev vs Logical yuam kev |
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| A syntax yuam kev yog ib qho yuam kev nyob rau hauv lub syntax ntawm ib theem ntawm cov cim los yog tokens uas yog npaj los sau nyob rau hauv ib yam lus programming. | Ib qho yuam kev yog ib qho yuam kev hauv ib qho kev pab cuam uas ua rau nws ua haujlwm tsis raug tab sis tsis txiav tawm qhov txawv txav. |
| tshwm sim | |
| Ib qho yuam kev syntax tshwm sim vim qhov ua txhaum ntawm qhov program syntax. | Ib qho yuam kev tshwm sim vim muaj qhov yuam kev hauv algorithm. |
| Ntseeg | |
| Hauv cov lus sau ua ke, qhov muab tso ua ke qhia qhov yuam kev syntax nrog qhov chaw thiab qhov yuam kev yog dab tsi. | Tus programmer yuav tsum kuaj pom qhov yuam kev ntawm nws tus kheej. |
| Simplicity | |
| Nws yooj yim dua los txheeb xyuas qhov yuam kev syntax. | Nws yog qhov sib piv nyuaj los txheeb xyuas qhov yuam kev. |
Summary – Syntax yuam kev vs Logical yuam kev
yuam kev yuav tshwm sim thaum lub programming. Muaj ntau hom kev ua yuam kev. Runtime yuam kev tshwm sim ntawm runtime. Qee qhov piv txwv ntawm runtime yuam kev yog dhia los ntawm xoom, nkag mus rau lub cim xeeb uas tsis muaj. Syntax yuam kev tshwm sim vim syntax yuam kev. Cov laj thawj yuam kev tshwm sim vim muaj qhov yuam kev hauv cov laj thawj ntawm qhov kev zov me nyuam. Qhov txawv ntawm qhov yuam kev syntax thiab qhov yuam kev yuam kev yog qhov yuam kev syntax tshwm sim vim qhov yuam kev hauv cov syntax ntawm ib ntu ntawm cov cim lossis cov tokens uas yog npaj los sau rau hauv ib hom lus programming thaum lub ntsiab lus yuam kev yog qhov yuam kev uas tshwm sim vim rau qhov txhaum hauv qhov program.
