Dab tsi yog txhais los ntawm hom ntaub ntawv muab los ntawm C ++?

2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47

Cov hom ntaub ntawv uas yog muab tau los ntawm qhov tseem ceeb hom ntaub ntawv hu ua muab tau cov ntaub ntawv hom . Muaj nuj nqi, arrays, thiab pointers yog tau txais cov ntaub ntawv hom hauv C programming lus. Piv txwv li, ib qho array yog muab tau cov ntaub ntawv hom vim nws muaj qhov zoo sib xws hom ntawm qhov tseem ceeb hom ntaub ntawv thiab ua raws li tus tshiab hom ntaub ntawv rau C.

Ib yam li ib tug yuav nug, dab tsi yog txhais los ntawm cov ntaub ntawv muab los ntawm C ++?

A muab tau cov ntaub ntawv hom yog ib phau ntawm hom ntaub ntawv uas piav qhia txog cov cai rau kev txhais cov ntaub ntawv khaws cia hauv thaj chaw sib txuas ntawm lub cim xeeb. Qee tus kws sau ntawv xa mus rau lawv li hom neeg siv txhais ib co li programmer- txhais hom . Ob leeg C thiab C++ cov lus muab syntax rau tshaj tawm muab tau cov ntaub ntawv hom.

Tsis tas li ntawd, vim li cas ib qho array hu ua cov ntaub ntawv muab los ntawm C ++? Ib array yog a muab tau cov ntaub ntawv hom vim nws tsis tuaj yeem txhais ntawm nws tus kheej, nws yog ib qho kev sau los ntawm qhov yooj yim hom ntaub ntawv Feem ntau, xws li cov lej, ob npaug, ntab, booleans, thiab lwm yam. Hauv hom lus taw qhia koj tuaj yeem muaj koj tus kheej cov chav kawm uas tuaj yeem yog lub hauv paus ntawm ib qho array.

Tsis tas li lo lus nug yog, txhais tau li cas los ntawm cov ntaub ntawv muab los ntawm hom?

Cov ntaub ntawv tau txais hom yog kev sib sau ua ke ntawm qhov tseem ceeb cov ntaub ntawv hom. tus cwj pwm, integer, ntab, thiab void yog qhov tseem ceeb hom ntaub ntawv . Pointers, arrays, structures thiab unions yog muab tau cov ntaub ntawv hom . Cov cim yog siv rau cov cim.

Dab tsi yog qhov txawv ntawm tus neeg siv cov ntaub ntawv hom thiab muab tau cov ntaub ntawv hom?

yog int(integer), char(character), float, double, bool etc. Tau txais cov ntaub ntawv hom yog array, pointers thiab lwm yam. Tus neeg siv txhais cov ntaub ntawv hom yog cov uas yog txhais los ntawm neeg siv siv yooj yim hom ntaub ntawv hauv lawv.