Cov txheej txheem:
Video: C puas muaj cov khoom khib nyiab?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
C ua tsis yog muaj tsis siv neeg khib nyiab . Yog tias koj plam qhov khoom, koj muaj dab tsi yog hu ua 'memory 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 cov peev txheej nco yog qhov tseem ceeb ntawm kev xav tau C cov kev pab cuam.
Khaws qhov no hauv kev txiav txim siab, puas yog C khib nyiab?
C++ tsis xav tau ib khib nyiab , vim nws tsis muaj khib nyiab . Hauv C ++ niaj hnub koj siv cov pointers ntse thiab yog li tsis muaj khib nyiab.
Tsis tas li ntawd, lub luag haujlwm ntawm cov khoom khib nyiab yog dab tsi? Cov neeg khaws khib nyiab nyob rau hauv tus nqi rau sau thiab tshem tawm pov tseg thiab cov khoom siv rov ua dua tshiab rau kev ua haujlwm ntxiv. Hom haujlwm dej num npe on a Cov neeg khaws khib nyiab piv txwv resume ua haujlwm pov tseg tsheb sib sau ua ke, ua raws li txoj hauv kev, sau tsis kam, thiab qhia rau cov saib xyuas.
Yog li ntawd, dab tsi yog khib nyiab C?
Cov khib nyiab (GC) yog ib qho cuab yeej uas muab kev nco tsis siv neeg rov qab rau cov cim nco tsis siv. Programmers dynamically faib lub cim xeeb, tab sis thaum lub block tsis xav tau lawm, lawv tsis tas yuav rov qab mus rau lub kaw lus meej meej nrog kev hu dawb () hu.
Yuav ua li cas koj ua ib tug khib nyiab?
Txoj kev yooj yim tshaj plaws los siv lub tshuab khib nyiab yog:
- Nco ntsoov tias koj tuaj yeem sau cov hauv paus hniav thoob ntiaj teb.
- Xyuas kom tseeb tias koj tuaj yeem hla lub heap, e.g. txhua tus nqi hauv heap yog ib qho khoom siv uas siv Txoj Kev Mus Ntsib uas xa rov qab tag nrho cov ntaub ntawv los ntawm cov khoom ntawd.
- Khaws cov txheej txheem ntawm tag nrho cov nqi faib.
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
Python puas muaj cov khoom khib nyiab?
Cov khib nyiab hauv Python. Python lub cim xeeb faib thiab deallocation txoj kev yog tsis siv neeg. Tus neeg siv tsis tas yuav tsum preallocate lossis deallocate nco zoo ib yam li siv dynamic memory faib ua hom lus xws li C lossis C ++
Peb puas tuaj yeem hu tus neeg khaws khib nyiab manually hauv Java?
Kev sau khib nyiab hauv java tsis tuaj yeem raug yuam. Tab sis tseem qee zaum, peb hu rau System. gc() txoj kev qhia meej. gc() txoj kev tsuas yog ib qho 'hint' rau JVM tias cov khib nyiab yuav tsum khiav
Cov khib nyiab termite zoo li cas?
Termite Droppings Zoo Li Cas? Feem ntau cov frass me me, txog ib millimeter ntev, thiab tuaj yeem zoo li pom plua plav lossis ntoo shavings. Qhov sib txawv tseem ceeb yog cov ntoo ntsaum muaj lawv cov frass nyob ib ncig ntawm qhov qhib ntawm lawv lub zes, los yog qhov chaw, thaum termites nyiam tawg lawv cov frass