Video: Python puas muaj cov khoom khib nyiab?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov khib nyiab hauv Python . Python cov nco faib thiab deallocation txoj kev yog tsis siv neeg. Tus neeg siv ua tsis yog muaj kom preallocate lossis deallocate nco zoo ib yam li siv dynamic memory allocation hauv hom lus xws li C lossis C ++.
Tsis tas li ntawd, dab tsi yog khib nyiab collector hauv Python?
Cov txheej txheem uas Python ncua sij hawm frees thiab reclaims blocks ntawm lub cim xeeb uas tsis siv lawm hu ua Cov khib nyiab . Python's khib nyiab collector khiav thaum lub sij hawm qhov kev pab cuam thiab yuav tshwm sim thaum ib yam khoom siv suav suav mus txog xoom.
Kuj Paub, puas yog Python Del lub cim xeeb dawb? Yog vim li cas yog tias thaum twg block yog suav tias dawb ”, tias nco yog tsis tau tso rov qab mus rau lub operating system. Cov Python txheej txheem khaws nws faib thiab yuav siv nws tom qab rau cov ntaub ntawv tshiab. Tseeb tiag tso kev nco rov qab mus rau lub operating system siv. Arenas yog tib yam uas ua tau dim tiag tiag.
Kuj paub, tus neeg khaws khib nyiab ua dab tsi?
Cov khib nyiab , los yog xwb tus sau , sim rov qab khib nyiab , los yog nco occupied los ntawm cov khoom uas yog tsis siv los ntawm qhov program lawm. Cov peev txheej uas tsis yog lub cim xeeb, xws li cov khoom siv hauv lub network, cov ntaub ntawv tuav, cov neeg siv kev sib cuam tshuam qhov rais, cov ntaub ntawv thiab cov cuab yeej piav qhia, yog tsis feem ntau tuav los ntawm khib nyiab.
Vim li cas C ++ tsis muaj tus neeg khaws khib nyiab?
C++ Ameslikas yog qhov txuas ntxiv rau C - qhov kev xaiv twb tau ua lawm, thiab nws nyuaj heev rau kev cog qoob loo khib nyiab mus rau ib hom lus uas twb muaj lawm. C ++ tsis xav tau cov khoom khib nyiab , vim muaj tsis muaj khib nyiab . Hauv niaj hnub C++ koj siv smart pointers thiab yog li ntawd muaj tsis muaj khib nyiab.
Pom zoo:
Lub tsev Roman tseem ceeb thiab zoo li cas suav nrog tag nrho cov hauv qab no nta lub thoob khib nyiab hauv pliaj vaults thiab lub hauv paus dome hla ib chav tsev yim sab?
Lub Basilica ntawm Constantine suav nrog cov thawv ntim khoom, lub puab tsaig vaults, thiab lub hauv paus dome hla ib chav yim sab. Roman dub thiab dawb mosaics feem ntau tshwm sim ntawm phab ntsa ntawm tsev
Puas txhais tau tias yog kev sib raug zoo ntawm cov khoom ntawm ib yam khoom thiab lub peev xwm ntawm tus neeg sawv cev uas muab cov lus qhia rau kev siv cov khoom?
Kev them nyiaj yog kev sib raug zoo ntawm cov khoom ntawm ib yam khoom thiab lub peev xwm ntawm tus neeg sawv cev uas txiav txim siab seb qhov khoom siv tau li cas
C puas muaj cov khoom khib nyiab?
C tsis muaj kev sau cov khib nyiab tsis siv neeg. Yog tias koj poob ntawm ib qho khoom, koj muaj qhov hu ua 'nco leak'. Lub cim xeeb tseem yuav muab faib rau qhov kev pab cuam tag nrho, tab sis tsis muaj dab tsi yuav siv tau yog tias koj tau poob tus taw tes kawg rau nws. Kev tswj hwm cov peev txheej nco yog qhov tseem ceeb ntawm cov kev pabcuam C
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