Video: Kuv yuav txwv tsis pub muaj kev faib tawm ntawm ib qho khoom hauv C ++ li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Pawg raws li khoom yog implicitly tswj los ntawm C++ compiler. Lawv raug puas tsuaj thaum lawv tawm mus thiab dynamically faib khoom yuav tsum tau manually tso tawm, siv tus neeg teb xov tooj rho tawm lwm yam nco leak tshwm sim. C++ tsis txhawb kev sau cov khib nyiab tsis siv neeg siv los ntawm cov lus xws li Java & C#.
Ua raws li qhov no, Kuv yuav txwv tsis pub faib cov khoom siv hauv C ++ li cas?
Pawg raws li khoom yog implicitly tswj los ntawm C++ compiler. Lawv raug puas tsuaj thaum lawv tawm mus thiab dynamically faib khoom yuav tsum tau manually tso tawm, siv tus neeg teb xov tooj rho tawm lwm yam nco leak tshwm sim. C++ tsis txhawb kev sau cov khib nyiab tsis siv neeg siv los ntawm cov lus xws li Java & C#.
Tsis tas li ntawd, peb puas tuaj yeem faib lub cim xeeb rau cov khoom dynamically hauv CPP? Dynamic Memory Allocation rau Khoom Peb ua tau kuj dynamically faib khoom . Raws li peb paub tias Constructor yog ib tug tswv cuab ntawm chav kawm uas hu ua thaum twg ib tug tshiab khoom yog tsim los ntawm chav kawm ntawd. Destructor kuj yog ib tug tswv cuab hauv chav kawm ntawv uas yog hu ua thaum twg lub khoom tawm mus.
Tib neeg kuj nug, ua li cas koj ua C ++ chav kawm uas nws cov khoom tsuas tuaj yeem faib tau dynamically?
- Ua tsis tau. Qhov tsuas yog qhov koj tuaj yeem ua tau yog Ua tus tsim tus kheej ntiag tug, thiab muaj lub Hoobkas zoo li qub uas tsim ib qho piv txwv tshiab ntawm chav kawm. -
- Tsim cov chav kawm zoo li no yeej muaj teeb meem.
- Qhov ntawd yog qhov yuav tsum tau khib heev.
Vim li cas peb yuav tsum tau ua dynamic pib ntawm cov khoom?
Cov Dynamic Initialization ntawm Cov Khoom txhais tau tias pib cov ntaub ntawv cov tswv cuab ntawm chav kawm thaum tsim cov khoom . Thaum twg peb xav los muab cov nqi pib lossis qhov tseem ceeb rau cov tswv cuab cov ntaub ntawv thaum tsim khoom - peb xav tau siv dynamic pib ntawm cov khoom.