Video: Dab tsi yog qhov txawv ntawm ib qho array thiab vector?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Vector occupies ntau ntau nco nyob rau hauv pauv rau lub peev xwm los tswj cia thiab loj hlob dynamically whereas Arrays yog lub cim xeeb zoo cov ntaub ntawv qauv. Vector yog muab tau los ntawm Sau uas muaj ntau hom ntaub ntawv generic whereas Array yog ruaj thiab khaws cov ntaub ntawv muaj zog ntau hom.
Ib yam li ntawd, ib qho vector txawv ntawm ib qho array li cas?
- A vector yog dynamic array , nws qhov loj tuaj yeem nce ntxiv, qhov twg yog qhov array qhov loj me yuav hloov tsis tau. - Reserve qhov chaw tuaj yeem muab rau vector ,qha as arrays ua tsis tau. - A vector yog ib hoob uas yog ib tug array tsis yog. - Vectors tuaj yeem khaws txhua yam khoom, qhov twg raws li ib qho array tuaj yeem khaws cov txiaj ntsig homogeneous nkaus xwb.
Ib yam li ntawd, vector puas yog array C ++? Vector hauv C++ STL. Vectors zoo ib yam li dynamic arrays nrog lub peev xwm los resize nws tus kheej tau txais thaum ib lub caij yog ntxig los yog tshem tawm, nrog rau lawv cov cia tau tuav cia los ntawm lub thawv. Vector cov ntsiab lus tau muab tso rau hauv qhov sib txuas cia kom lawv tuaj yeem nkag mus thiab hla siv iterators.
Tsis tas li ntawd, qhov txawv ntawm daim ntawv thiab vector yog dab tsi?
Ob leeg vector thiab lis yog cov ntim khoom sib txuas ntawm C++ Standard Template Library. Sau npe khaws cov ntsiab lus ntawm qhov chaw nco tsis sib thooj xws li nws sab hauv siv ob npaug txuas lis i.e. Vim li cas, vector khaws cov khoom ntawm qhov chaw nco sib txuas zoo li ib qho array i.e.
Dab tsi yog array thiab vector hauv Java?
Qhov sib txawv tseem ceeb ntawm Arrays thiab Vectors hauv Java yog tias Vectors yog dynamically faib. Lawv tsis tau tshaj tawm tias muaj hom kev hloov pauv; xwb, txhua tus Vector muaj cov npe dynamic ntawm kev xa mus rau lwm yam khoom. Thaum a Vector yog instantiated, nws tshaj tawm ib yam khoom array ntawm qhov loj pibCapacity.
Pom zoo:
Dab tsi yog qhov txawv ntawm ib qho semicolon thiab ib qho comma?
Lub semicolon yog siv los cais ob lub tswv yim (ob lub ntsiab lus ywj pheej) uas muaj feem cuam tshuam. Lawv tuaj yeem siv tau thaum sau cov tswv yim nyuaj lossis cov kab lus uas siv cov cim hauv lawv. Qhov tseem ceeb, ib qho semicolon zoo li tus lej cim nrog ntau lub ntsiab lus lossis txoj hnyuv loj nrog kev hloov pauv ntau dua
Dab tsi yog qhov txawv ntawm tus pin grid array thiab av grid array?
Sib nrug los ntawm qhov tseeb tias thawj yog hais txog Pin GridArray thiab qhov thib ob rau Land Grid Array, qhov txawv yog dab tsi? Nyob rau hauv rooj plaub ntawm PGA, CPU nws tus kheej tuav tus pins - uas tuaj yeem nthuav tawm tsawg dua li cov lej ntawm lub qhov (socket) - thaum LGA, cov pins yog ib feem ntawm lub qhov (socket) ntawm lub motherboard
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 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