Video: Qhov txawv ntawm scripting thiab programming yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hauv paus, tag nrho sau ntawv lus yog programming yam lus. Qhov theoretical sib txawv ntawm ob yog qhov ntawd sau ntawv Cov lus tsis tas yuav tsum tau ua cov kauj ruam muab tso ua ke thiab raug txhais zoo dua. Feem ntau, compiled cov kev pab cuam khiav ceev dua cov kev pab cuam txhais lus vim hais tias lawv yog thawj hloov dua siab tshiab lub tshuab code.
Ua li no, programming thiab scripting yog dab tsi?
Txhais. A sau ntawv los yog tsab ntawv lus a programming lus uas txhawb ntawv : cov kev pab cuam sau rau qhov tshwj xeeb runtime ib puag ncig uas automatethe ua tiav cov dej num uas tuaj yeem hloov tau ua tiav los ntawm ib tus neeg ua haujlwm. Kev sau ntawv cov lus feem ntau txhais tau (tsis yog sau ua ke).
Tsis tas li ntawd, programming lus thiab scripting language yog dab tsi? Ib yam yooj yim, a programming lus yog anartificial lus uas tso cai rau kev sib txuas lus ntawm cov lus qhia thiab tshuab (computer) thaum a scripting lus yog ib daim ntawv ntawm programming lus uas pab tswj ib lossis ntau daim ntawv thov yam tsis xav tau kev sib sau ua ke.
Khaws qhov no hauv kev txiav txim siab, Python puas yog scripting lossis programming lus?
Python suav tias yog ib scripting lus vim muaj keeb kwm tsis meej ntawm scripting lus thiab lub hom phiaj dav dav programming lus . Qhov tseeb, Python tsis yog a scripting lus , tab sis lub hom phiaj dav dav programming lus uas tseem ua haujlwm zoo scripting lus.
Puas yog SQL yog ib hom lus sau ntawv?
SQL ntawv (Structured Query Lus ) yog kev tswj hwm adatabase lus rau relational databases. SQL ntawv nws tus kheej tsis yog programming lus , tab sis nws tus qauv tso cai tsim cov txheej txheem txuas ntxiv rau nws, uas txuas ntxiv mus rau kev ua haujlwm ntawm kev ua haujlwm paub tab lus.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov sib txawv hauv zos thiab thoob ntiaj teb hauv SQL Server?
Qhov sib txawv hauv zos tau tshaj tawm hauv ib qho kev ua haujlwm whereas Ntiaj teb hloov pauv tau tshaj tawm sab nraum lub luag haujlwm. Cov kev hloov hauv zos tau tsim thaum lub luag haujlwm tau pib ua tiav thiab ploj thaum lub luag haujlwm xaus, ntawm qhov tod tes, Ntiaj teb hloov pauv yog tsim raws li kev tua pib thiab ploj thaum qhov kev pab cuam xaus
Dab tsi yog qhov sib txawv ntawm lub thawv thiab lub thawv ntawv thiab lub thawv ntawv yog dab tsi?
Ib lub thawv thiab cov ntawv nplawm (qee zaum hu ua boxplot) yog ib daim duab uas nthuav tawm cov ntaub ntawv los ntawm tsib lub ntsiab lus. Nyob rau hauv ib lub thawv thiab whisker zajlus: qhov kawg ntawm lub thawv yog lub sab sauv thiab sab quartiles, yog li lub thawv spans lub interquartile ntau yam. qhov nruab nrab yog cim los ntawm ib txoj kab ntsug hauv lub thawv
Dab tsi yog qhov sib txawv ntawm cov txheej txheem programming thiab modular programming?
Structured programming yog qib qis ntawm coding hauv txoj kev ntse, thiab kev ua haujlwm modular yog qib siab dua. Modular programming yog hais txog kev sib cais qhov chaw ntawm cov kev pab cuam rau hauv kev ywj pheej thiab hloov pauv tau, los txhim kho kev sim, kev tswj xyuas, kev sib cais ntawm kev txhawj xeeb thiab rov siv dua
Dab tsi yog qhov zoo sib xws thiab qhov txawv ntawm relays thiab PLC yog dab tsi?
Relays yog electro-mechanical keyboards uas muaj coil thiab ob hom kev sib cuag uas tsis yog NO & NC. Tab sis Programmable Logic Controller, PLC yog lub khoos phis tawj me uas tuaj yeem txiav txim siab raws li qhov kev zov me nyuam thiab nws cov tswv yim & tso tawm
Dab tsi yog qhov sib txawv ntawm qhov ntsuas qhov ntsuas thiab qhov ntsuas thib ob?
Primary index: nyob rau hauv ib tug sequentially order file, qhov Performance index uas nws search key qhia cov sequential order ntawm cov ntaub ntawv. Kuj hu ua clustering index. Secondary index: ib qho Performance index uas nws qhov tseem ceeb tshawb nrhiav qhia qhov kev txiav txim sib txawv ntawm qhov kev txiav txim ntawm cov ntaub ntawv. Kuj hu ua non-clustering index