Cov txheej txheem:
Video: Cov ntaub ntawv linear yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Piv txwv ntawm linear cov ntaub ntawv cov qauv yog Arrays, Stack, Queue thiab Linked List. Ib arrays yog ib phau ntawm cov ntaub ntawv cov khoom muaj tib yam hom ntaub ntawv . Ib pawg yog LIFO (Kawg Hauv Thawj Tawm) cov ntaub ntawv qauv qhov twg lub caij uas ntxiv kawg yuav raug tshem tawm ua ntej. Txhua qhov haujlwm ntawm pawg yog ua los ntawm qhov kawg hu ua TOP.
Hauv qhov no, cov ntaub ntawv linear yog dab tsi?
Linear cov ntaub ntawv qauv: A linear cov ntaub ntawv qauv traverses cov ntaub ntawv cov ntsiab lus sequentially, uas tsuas yog ib qho cov ntaub ntawv element tuaj yeem ncav cuag. Piv txwv li: Arrays, Linked Lists. Tsis- Linear cov ntaub ntawv structure: Txhua cov ntaub ntawv yam khoom yog txuas rau ob peb lwm yam cov ntaub ntawv cov khoom nyob rau hauv ib txoj kev uas tshwj xeeb rau kev xav txog kev sib raug zoo.
Ib yam li ntawd, dab tsi yog cov ntaub ntawv sib txawv uas tsis yog kab ntawv? Kev siv ntawm tsis yog - linear cov ntaub ntawv qauv yog complex. Array, Queue, Stack, Linked List yog linear cov ntaub ntawv qauv . Ntoo, duab yog tsis yog - linear cov ntaub ntawv qauv . Ib tsob ntoo yog ib qho kev sau ntawm cov nodes uas cov nodes tau teem hierarchically thiab tsim kev sib raug zoo ntawm niam txiv-me nyuam.
Tsis tas li ntawd, qhov txawv ntawm linear thiab nonlinear cov ntaub ntawv qauv yog dab tsi?
Lub ntsiab Qhov sib txawv ntawm cov ntaub ntawv linear thiab nonlinear cov ntaub ntawv yog tias linear cov ntaub ntawv qauv npaj cov ntaub ntawv nyob rau hauv ib tug sequential yam thaum nonlinear cov ntaub ntawv qauv npaj cov ntaub ntawv nyob rau hauv ib tug hierarchical yam, tsim kev sib raug zoo ntawm cov cov ntaub ntawv cov ntsiab lus. A cov ntaub ntawv qauv yog ib txoj hauv kev khaws cia thiab tswj cov ntaub ntawv.
Cov ntaub ntawv sib txawv yog dab tsi?
Hom ntaub ntawv
- Primitive: yooj yim tsev thaiv (boolean, integer, ntab, char thiab lwm yam)
- Composite: txhua yam ntaub ntawv (struct, array, hlua thiab lwm yam) muaj li ntawm primitives los yog composite hom.
- Abstract: hom ntaub ntawv uas txhais los ntawm nws tus cwj pwm (tuple, set, stack, queue, graph etc).
Pom zoo:
Cov ntaub ntawv hom thiab cov qauv ntaub ntawv yog dab tsi?
Cov qauv ntaub ntawv yog ib txoj hauv kev piav qhia txog ib txoj hauv kev los npaj cov ntaub ntawv kom ua haujlwm andalogrithms tuaj yeem siv tau yooj yim dua. Ib hom ntaub ntawv piav qhia txog cov ntaub ntawv uas txhua tus sib koom ua ke. Piv txwv li tus lej cov ntaub ntawv hom piav qhia txhua tus lej uas lub khoos phis tawj tuaj yeem ua tau
Dab tsi yog qhov txawv ntawm XML cov ntaub ntawv thiab cov ntaub ntawv sib txheeb?
Qhov sib txawv loj ntawm XML cov ntaub ntawv thiab cov ntaub ntawv sib txheeb Ib daim ntawv XML muaj cov ntaub ntawv hais txog kev sib raug zoo ntawm cov ntaub ntawv rau ib leeg nyob rau hauv daim ntawv ntawm hierarchy. Nrog rau tus qauv kev sib raug zoo, tib hom kev sib raug zoo uas tuaj yeem txhais tau yog cov lus niam txiv thiab cov rooj sib raug zoo
Dab tsi yog qhov sib txawv ntawm pab pawg cov ntaub ntawv thiab cov ntaub ntawv tsis yog pawg?
Ob leeg yog cov ntaub ntawv muaj txiaj ntsig ntawm cov ntaub ntawv tab sis qhov sib txawv ntawm lawv yog cov ntaub ntawv tsis muaj ntaub ntawv yog rawdata. Qhov no txhais tau hais tias nws nyuam qhuav tau sau tab sis tsis txheeb rau hauv ib pawg lossis cov chav kawm. Ntawm qhov tod tes, groupeddata yog cov ntaub ntawv uas tau teeb tsa ua pawg los ntawm cov ntaub ntawv nyoos
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously
Dab tsi yog cov teeb meem ntawm kev tswj cov ntaub ntawv hauv cov ntaub ntawv ib txwm muaj?
Nyob rau tib lub sijhawm, qhov kev tswj hwm cov ntaub ntawv ib puag ncig tsim teeb meem xws li cov ntaub ntawv rov ua dua thiab tsis sib xws, cov kev pab cuam-cov ntaub ntawv dependence, inflexibility, tsis muaj kev ruaj ntseg, thiab tsis muaj cov ntaub ntawv sib qhia thiab muaj