Yuav ua li cas polymorphism siv hauv c ++?

2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38

Feem ntau muaj ob txoj hauv kev uas qhov kev zov me nyuam tuaj yeem tsim ua kom pom tus cwj pwm polymorphic. Namely, dhau los ntawm kev muaj pes tsawg leeg lossis qub txeeg qub tegPolymorphism ntawm kev muaj pes tsawg leeg tso siab rau (1) zoo-txhais thiab nqaim interfaces thiab (2) lwm yam khoom lossis hom uas muaj cov lus hais rau tej yam uas siv cov kev sib tshuam.

Yuav ua li cas thiaj ua tau polymorphism?

Koj tuaj yeem siv polymorphism los daws qhov teeb meem no hauv ob kauj ruam yooj yim:

1. Tsim cov chav kawm hierarchy uas txhua chav kawm tshwj xeeb yog muab los ntawm cov chav kawm hauv paus.
2. Siv tus txheej txheem virtual los hu cov qauv tsim nyog ntawm txhua chav kawm tau los ntawm kev hu ib zaug mus rau cov txheej txheem hauv chav kawm.

Koj ua li cas siv polymorphism hauv oops?

Inclusion polymorphism

Nyob rau hauv txoj kev overriding, koj muaj txoj kev uas muaj ib tug zoo tib yam kos npe tam sim no nyob rau hauv lub hauv paus thiab cov derived chav kawm. Feem ntau koj yuav xav siv txoj hauv kev zoo lilos siv lub sijhawm ua haujlwm polymorphism lossis lig khi.

Dab tsi yog polymorphism hauv C nrog piv txwv?

Polymorphism piv txwv hauv C ++

Polymorphism yog ib qho tseem ceeb ntawm cov khoom taw qhia kev ua haujlwm uas txhais tau tias muaj ntau hom ntawv. … Ib qho piv txwv ntawm compile lub sij hawm polymorphism yog function overloading los yog tus neeg teb xov tooj overloading Ib qho piv txwv ntawm runtime polymorphism yog function overriding.

Lub hom phiaj ntawm polymorphism yog dab tsi?

Polymorphism tso cai rau peb ua ib qho kev txiav txim sib txawv. Hauv lwm lo lus, polymorphism tso cai rau koj los txhais ib qho interface thiab muaj ntau yam kev siv. Lo lus "poly" txhais tau tias ntau thiab "morphs" txhais tau tias cov ntawv, Yog li nws txhais tau ntau hom.